—The garage ________ outside the hospital annoys the doctors and patients terribly.
—Actually, we don’t know when it will be completed.
| A．to build | B．being built |
| C．to be built | D．having been built |
When a giraffe has ______ drink, it has to stand with its front legs wide apart in order to reach ______ water easily.
| A．不填；不填 | B．a; the | C．the; 不填 | D．不填；the |
If we ___________some measures, we might have prevented the environmental pollution.
| A．take | B．had taken | C．took | D．have taken |
–May I smoke in the room?
--No, you______________. It’s a non-smoking room..
| A．mightn’t | B．won’t | C．needn’t | D．mustn’t |
---It’s a long time ______ I last saw you.
---Yes, and it will be another month ______ we can meet again.
| A．before; when | B．when; since | C．since; while | D．since; before |
John received an invitation to dinner, and with his work ________, he gladly accepted it.
| A．finished | B．finishing | C．having finished | D．was finished |