The bad weather meant ______ the rocket launch (发射) for 48 hours .
| A．delaying | B．having delayed | C．to delay | D．to have delayed |
The failure of their friendship was closely related _____ other people’s privacy.
| A．to not his respecting | B．to his not respecting |
| C．his not to respect | D．his not to respecting |
—Will Jane join in our party tonight?
—Yes, but I’d rather she _____.
| A．wouldn’t come | B．hadn’t come |
| C．didn’t come | D．weren’t to come |
These trees must have been planted three years ago, _____?
| A．mustn’t they | B．weren’t they |
| C．didn’t they | D．haven’t they |
Never should we forget the anti-Japanese war and sufferings _____ caused to people.
| A．it | B．which | C．that | D．what |
—So you are having a good time in China, David?
—Yes, We _______ ourselves since we came here last week.
| A．enjoyed | B．were enjoying |
| C．had enjoyed | D．have been enjoying |