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МатематикаВопрос:
7. The students ______ in the classroom for 20 minutes, but the teacher hasn't come yet.
Ответ:
7. The students have been sitting in the classroom for 20 minutes, but the teacher hasn't come yet.
Ответ: have been sitting
Похожие
- Exercise 2 FILL IN THE BLANKS Choose the correct verb from the word list to complete the following sentences. Use the present perfect progressive tense. 1. Maria ______ at the coffee shop for her boyfriend for the past half hour, but he still hasn't arrived.
- 2. The students ______ Spanish since the semester began.
- 3. 1 ______ on this report for the past two days.
- 4. You should take your umbrella when you go out. It ______ all day.
- 5. Your children ______ television all evening.
- 6. John's back hurts. He ______ heavy boxes all morning.
- 8. The girls ______ on the telephone for over an hour.
- 9. Frank ______ the same car for almost 20 years.
- 10. Mr. and Mrs. Barnes are very excited about going to China next summer. They ______ this trip for over a year.
- 11. That mailman ______ the mail in our neighbourhood for nearly 25 years. He is going to retire soon.
- 12. Rita and Carly are at the mall. They ______ since the stores opened this morning.
- 13. My eyes are getting tired. I ______ all day.
- 14. Bill hopes to find a new job soon. He ______ in the paper and on the Internet every day for the past month.
- 15. Andrea is planning to call the doctor this afternoon. She ______ sick for several days.
- 16. Claire's eyes are red. She ______ all morning.
