1 . ______ is acknowledged to us all that the old scientist, for whom life was hard in the past, still works hard in his eighties. (用适当的词填空)

2 . There is no denying that volunteers consider ____________ important for them to protect the historical sites in China.

3 . He owes ____________ to his father that he has been so successful. (用适当的词填空)

4 . My friend is a reliable person, and you can rely on ____that he will give you a hand. (用适当的词填空)

5 . 单句语法填空: 情态动词和虚拟语气&主谓一致&词法
1. If you want to study in foreign countries, a good knowledge of the culture is regarded as ___________must for you to live happily.
2. It is said that Jim has got a good job in a big company, and he is paid by___________week.
3. People hate___________when you don’t say what you mean.
4. Helping others is a habit, ___________that you can learn at an early age.
5. ----The film is, I have to say, not a bit interesting.
----Why? It’s ___________ (interesting) than the films I have ever seen.
6. Twenty years ___________(have) passed since he left his hometown.
7. He is the only one of the students who___________(be) a winner of scholarship for three years.
8. ---- Why are your eyes so red? You ____________have slept well last night.
---- Yeah, I stayed up late writing a report.
9. If the new safety system ____________(put) to use, the accident would never have happened.
10. It’s high time that he ___________(send) to the hospital.