Exercise 3: Put the verbs in brackets: Present perfect or present perfect progressive. (2) 1. You took tired. (you/study) ......................................... hard? 2. Mr. Brown is new here, isn’t he? How long (he/work) ......................................... for the company? 3. I (lose) ......................................... my wallet. Have you seen it anywhere? 4. I (read) ......................................... the magazine you lent me, but I (not/finish) ......................................... yet. 5. (you/hear) ................................... the bad news? Simon (break) ................................... his leg! 6. John (write) ................................... his novel since last year. He ................................... the first three chapters. 7. What (you/do) ........................................ I (wait) ........................................ for you for an hour. 8. The painters (paint) ......................................... the town hall since February. They ......................................... (paint) nearly half of it now. 9. I (know) ......................................... Louise for ten years. 10. Mr. Brown (mark) ........................................ the exams all morning, but he (not/read) ........................................ them all. Exercise 4: Choose the best option to complete the sentence. 1. She can’t come to the phone now because she ..................... tomorrow’s test. A. studies B. is studying C. has studied D. has been studying 2. They must be at the sports ground now. They usually ..................... basketball on Fridays. A. play B. are playing C. have played D. have been playing 3. I ..................... my work already. I’m ready to go for a walk with you. A. finish B. am finishing C. have finished D. have been finishing 4. I ..................... breakfast right now. Can you call a tittle later? A. cook B. am cooking C. have cooked D. have been cooking 5. I ..................... this book. Can I borrow it tor a week or so? A. don’t read B. am not reading C. haven’t read D. haven’t been reading 6. Maria is good at languages. She ..................... French, Spanish and German. A. speaks B. is speaking C. has spoken D. has been speaking 7. So far, he ..................... five stories for children. A. writes B. is writing C. has written D. has writing 8. We ..................... for their answer for two months already A. wait B. are waiting C. have been waited D. have been waiting 9. She ..................... since Monday. A. is sick B. is being sick C. has been sick D. has been being sick 10. She ..................... since noon. Should we wake her up? A. sleeps B. is sleeping C. has been sleep D. has been sleeping Jup đc bao nhiêu thì jup nha các bn ! :>>

(-37)+14+26+37 tính hợp lí nha

giúp mình nha , bài không đến nỗi khó lắm đâu Complete the email with suitable verbs in the correct form: present simple, present continuous, past simple or past continuous.Hi Anita, Thanks for the text you sent yesterday. I (2)……………. to feel better now although my back still (3) ……………...if I (4)………………….. too far. Last night I (5)…………………. some friends who (6)………………….. dinner near here. I (7……………………..) to the cafe quite easily, but while I (8)……………………. home, my back (9)……………………. to ache really badly. So today I……………………... (10) more careful. Remember that great song we heard during Laura’s birthday meal? Well, I finally……………….. (11) to find out who sings it! They have a concert next month if you (12) ………………………...to go together? You could invite John too – I know you (13) ………………………………..for a thank-you gif for him. I must lie down now because my back (14)…………………….. to hurt again. Come and see me soon. I’m OK, but you know me, I (15) ………………….bored very quickly! Love, Alice

7. Cho nguyên tử A có cấu tạo nguyên tử ở chu kỳ 3, có 2 electron trong nguyên tử là 12. Hãy xác định vị trí và tính chất của nguyên tố A.

Chọn ngẫu nhiên một số từ tập các số tự nhiêncó ba chữ số đôi một khác nhau. Xác suất để số được chọn có tổng các chữ số là bằng chẵn là?

Rút gọn phân số 3.8 phần 16.9

Giải thích nguyên nhân làm cho thiên nhiên nước ta chịu ảnh hưởng sâu sắc của biển

x-17+x bằng x-7 giúp mình với

Tính chu vi hình vuông biết độ dài một cạnh là 1m3dm

Em cần giúp gấp mong mn giúp em ạ