1 . You can rely on _________that they will finish their work ahead of time.(用适当的词填空)

2 . I’d appreciate ___________ if you keep silent. (用适当的词填空)

3 . The other day, ________ occurred to Johnson that he should make a road trip to help the needy. (用适当的词填空)

4 . You may rely on ________ that it won’t happen again. (用适当的词填空)

5 . I would appreciate ________ if you could keep silent. (用适当的词填空)

6 . ______ 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)

7 . _____is known to us all that the 2022 Olympic Winter Games will take place in Beijing. (用适当的词填空)

8 . _____________never occurred to me that he would fail in the exam. (用适当的词填空)

9 . It suddenly occurred to him _____ he had left his keys in the office.