Seeing the teacher raising her finger to her lips as __________ for silence, all the students sat down in a standard __________
| A．a gesture; situation | B．a mark; pose |
| C．a sign; position | D．a symbol; condition |
Visitors are not permitted ________ the park after dark, because of the lack of lighting.
| A．to enter | B．entering |
| C．to enter in | D．entering in |
---___________ everyone present at the meeting?---No, all but one _________ there.
| A．Was; was | B．Were; were |
| C．Was; were | D．Were; was |
All possible means __________.However, nothing can __________ Jack from adventuring in that mysterious forest.
| A．has tried; stop | B．has been tried; keep |
| C．have tried; keep | D．have been tried; prevent |
－How do you like our restaurant?－I couldn’t have found a ________ one.
| A．good | B．better |
| C．best | D．fine |
_________ will be years __________ we meet again.
| A．There; since | B．There; after |
| C．It; that | D．It; before |