Choose the best answer : 1. _______ we lived in town, we often went to the theater a. After b. When c. For d. Or 2. He took the food eagerly, _ he had eaten nothing since dawn.a. if b. in case c. but d. for 3. _______ the sun rose, the fog dispersed.a. As b. When c. Before d. After 4. _______ a married man, he has to think of his family. a. If b. As c. or d. so 5. Tired___ he was, he offered to carry her.a. as b. though c. Although d. however 6. Some people waste food_______ others don't have enough. a. as b. in case c. while d. before 10. Strong_______ he was, he couldn't lift it.a. like b. as c. or d. and 14. Take a map with you _______ you lose your way.a. if b. in case c. so that d. so 15. The play was very boring, _______ they walked out.a. so b. if c. when d. while 16. She'll only do the job_______ you pay he more.a. unless b. after c. if d. as 17. He hasn't written to us_______ he left.a. when b. for c. because d. since 18. I never take and umbrella_______ it's raining heavily.a. unless b. if c. otherwise d. or 19. He got a new alarm clock_______ he'd get up on time. a. because b. and c. so that d. so' 20. He agreed to go climbing_______ he hated heights. a. despite b. in spite of c. so d. although

Use the verbs in brackets in the correct tense or form 16.My brother (join)…………the army when he (be)……….young. 17.I (see)……. a car accident while I (wait)………..for you at this corner yesterday. 18.Mr.John (be)………..principal of our school since last year. 19.Mr. Smith (teach)…………….at this school since he (graduate)………………..in 1990. 20.My father (not watch)……….TV every night. 21.I (meet)…………………. Arthur 3 weeks ago. 22.Yesterday the police (report)…………that they (capture)……………………..the thief. 23.My friend (thank)…………………me for what I had done for him. 24.Someone (steal)………….. my handbag on the bus. 25.The Browns (live)……. in Paris for 7 years when the second world war (break)………. out. 26.Last month I (be)…………………….in the hospital for ten days. 27.Don’t call me in the afternoon. I usually (be)………………...away in the afternoon. 28.John (drive)………..that car ever since I (know)……….him. 29.People (speak)……….English in most of Canada. 30.The dog (wag)………his tail whenever he (see)………me.

Vẽ đậu mầm/chibi *trông ngáo tý nhá* NL: Vk off Hoidap òi :))

Thực hiện phép tính ạ Nhanh ạ Cần gấp

I wish my summer holiday .... longer A Will be B is C were D has been

Công thức rút gọn sinx+ cosx= √2 ...............= √2............... sinx- cosx= √2 ...............= √2...............

Tìm x 1. 4x ( x-3) - (2x-5)^2=-1

PK0020C - Tìm nghiệm Dữ liệu vào: standard input Dữ liệu ra: standard output Giới hạn thời gian: 1.0 giây Giới hạn bộ nhớ: 128 megabyte Đăng bởi: A2K53PK Xét một phương trình có dạng như sau: x + y + z = n ( n là một số nguyên dương ). Phương trình này có thể có vô số nghiệm. Tuy nhiên ở đây ta chỉ quan tâm các nghiệm (x,y,z) mà x,y,z là các số nguyên tố. Yêu cầu: Cho số nguyên dương N, hãy tìm tất cả các nghiệm (x,y,z) trong đó x < y < z. INPUT: Một dòng duy nhất ghi một số nguyên dương N ( N < 5000 ). OUTPUT: Gồm N dòng, dòng thứ i cho biết bộ nghiệm (x,y,z) thứ i tìm được. Nếu phương trình không có nghiệm nào thì in ra -1. Ví dụ input 5 output -1 input 8 output 2 3 3 c++ he;p

. Use the verbs in brackets in the correct tense or form 1.He (not finish)…………..his work yet. He only (start)………….. an hour ago. 2.A lot of people (kill)…………… by AIDS recently, and I wish nobody would die any more. 3.What ……….you ( do)…….... ifyou ( give) …….. $ 1,000,000? 4……….(you/do) ................. the homework yet? 5.English and French (teach) ……….. in our school. 6. The last time she (see) …….. in public she (wear)……. a white blouse 7. People used (make) ……… fire… by (rub)……..two sticks together 8.They (prepare)………….. the christmas dinner at the moment. 9.Our teacher (tell)………………… us yesterday that he (visit)………England in 1970. 10.George (work)……………………at the university so far. 11.When he lived in Manchester,he (work)………..in a bank. 12.I (lose)……………………my key. Can you help me look for it? 13.My father (not smoke)……………………….for 5 years. 14.How long Bod and Mary (be)…………married? 15.You (receive)………………….any letter from your parents yet?

Cho tam giác abc vuông tại a có sin C= $\frac{1}{cos B}$ . Tính tỉ số lượng giác của hai góc trên