My father didn’t have to say anything．I knew he was upset from his ________．
| A．look | B．sight | C．appearance | D．sign |
Having been ill in bed for nearly a month, he had problems __________ the exam.
| A．pass | B．passing |
| C．to pass | D．passed |
It was so dark that he __________.
| A．didn't dare to go out to fetch some water |
| B．not dared to go out to bring some water |
| C．dares not to go out to bring some water |
| D．not dare to go out to fetch some water |
The Wangs are considering __________ to Huangshan for a trip at five tomorrow morning.
| A．to move off | B．moved off |
| C．moving off | D．move off |
The rule is true __________ all cases.
| A．about | B．on |
| C．of | D．to |
Don't worry; the guide will tell you how to avoid __________ ill while travelling.
| A．to get | B．being got |
| C．getting | D．to be getting |