Mọi người help vs ạ, mình cần gấp ạ.

C=11.13.17.19+21.23.29.31 tổng sau là hợp số hay nguyên tố

Câu 35:Hỗn hợp X gồm Fe,FeO,Fe304 và Fe2O3.Đem hào tan 14.4 gam hỗn hợp X trong lượng dư dung dịch H2S04 đậm đặc,nóng,có 6,72l khí SO2 duy nhất thoát ra(ĐKTC).Sau khi kết thúc phản ứng,đem cô cạn dd,thu đc m gam muối khan.Trị số của m là!!?

It (not / rain) ______________ at all in Manchester last week. * 3 điểm A. didn't rain B. isn't C. hasn't rained D. doesn't rain It (rain) ______________ almost every day in Manchester. * 3 điểm A. rains B. rained C. has rained D. rain At 10 o’clock tomorrow, she will be in her office. She_________________ (work). * 3 điểm A. will work B. have worked C.will be worked D. will be working Nam and Vinh______________ (play) football yesterday. * 3 điểm A. are playing B. have played C.play D. played My son _______________ (not practice) the piano every day. * 3 điểm A. don't practice B. doesn't practice C.didn't practice D. hasn't practiced My mother often (teach) ______________ me English on Saturday evenings. * 3 điểm A. teaches B. has taught C. taught D. teach He (live) __________________in Australia for 10 years. * 3 điểm A. have lived B. lives C. has lived D. will live She usually _______________ (wash) the dishes after dinner. * 3 điểm A. washes B. washed C.wash D. is washing I often ______________ (drink) coca cola when I was a child. * 3 điểm A. am drinking B. drink C.drank D. has drunk Mr and Mrs Grey ___________________ (teach) French here for over five years. * 3 điểm A. teach B. have taught C.has taught D. taught My father (not, drink) _____________ coffee in the morning. * 3 điểm A. didn't drink B. isn't drinking C. hasn't drunk D. doesn't drink The last time I (go) ___________________ to HN was in May * 3 điểm A. was going B. have gone C.went D. go Please don’t make so much noise. I________________ (work). * 3 điểm A. worked B. work C. am working D. works Listen ! He (read) ________________ a story by Shakespeare. * 3 điểm A. is reading B. reads C.read D. has read Tony (not have) ________________ a bath at the moment. * 3 điểm A. won't have B. aren't having C. isn't having D. don't have Kate (not know) ____________ about the exam and she did very badly. * 3 điểm A. don't know B. didn't know C. hasn't known D. isn't known I ___________________ (know) Helen since we were at school together. * 3 điểm A. knew B. have know C.has known D. have known Susan and her friends ____________ (come) to Japan three months ago. * 3 điểm A. will come B. come C. came D. will be coming My parents (not take) ____________ to Vung Tau last week. * 3 điểm A. don't take B. didn't take C. haven't taken D. aren't taking At present Richard (study) ________________ in London. * 3 điểm A. was studying B. have studied C.studied D. is studying My mother _________________(bake) a cake in the kitchen at the moment. * 3 điểm A. bake B. is baking C. is baked D. bakes The children ________________ (not be) at home last Sunday. * 3 điểm A. aren't B. isn't C. haven't been D. weren't Simon usually ______________ (do) his homework and ______________ (watch) TV at the same * 3 điểm A. do / watch B. does / watches C. do / watches D. did / watched This time tomorrow, I_________________ (travel) through France. * 3 điểm A. will travel B. have travelled C.will be travelling D. travelled Nam and Vinh______________ (play) volleyball three times a week. * 3 điểm A. plays B. play C. are playing D. played We (spend) ___________________ our summer vacation in Ha Long Bay last July. * 3 điểm A. spent B. spend C. have spent D. are spending I ______________ (be) a student and my parents ______________ (be) teachers. * 3 điểm A. am / are B. am / is C. is / is D. be / are John (read) ___________________ the letter from Mary already. * 3 điểm A. have read B. has read C. read D. is reading At the same time tomorrow we _________________ (walk) through the streets of London. * 3 điểm A. will walk B. walks C. walk D. will be walking They (not see) ___________________ the film Titanic yet. * 3 điểm A. aren't seeing B. haven't seen C.don't see D. hasn't seen He_________________ (help) her take care of her children tomorrow morning. * 3 điểm A. helped B. helps C. has helped D. will help What _________________ (you/ do) at this time in five years? * 3 điểm A. will / do B. do /do C. will / be done D. will / be doing I (have ) ___________________ this toy since my birthday. * 3 điểm A. had B. have had C.has had D. is having

Giúp mình nha, chỉ cần ghi đáp án

Giúp em với ạ. Mình câu 12 thôi ạ Em cảm ơn

Vẽ Sticker ko cần tô màu - màu trắng Vẽ đẹp nhan

calli Thích rồi nha~ hoặc Lạnh lùng thek :( 1 chiếc acc mới UwU

Bài4:rewrite the second sentence so that it has a similar meaning with the first 1.our school has more than 2000 students Trả lời: 2:Mr.Brown is a good english teacher Mng giúp em với cả bài 4 nữa Sẽ đánh giá hay nhất

Làm ơn giúp em với Hôm nay là em phải gửi rồi