Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
| A．becomes | B．became | C．has become | D．had become |
—I’m sorry, but the boss isn’t here yet. Shall I have him call you when he comes back?
—No, I’ll call him back. If I call again in half an hour, do you think she ________ ?
| A．had arrived | B．has arrived | C．will arrive | D．will have arrived |
You’d better not phone the manager between 7 and 8 tomorrow evening; he ________ an important meeting then.
| A．will have | B．would have | C．will be having | D．will have had |
—You could have asked Mr Johnson for help. He is kind-hearted.
—I ________ that. A whole day ________.
| A．forget; wastes | B．forgot; was wasted | C．forgot; had wasted | D．forget; was wasted |
—Why do you look worried?
—Fred left the company half an hour ago. His work ________ unfinished since.
| A．left | B．was left | C．has left | D．has been left |
She ought to stop working; she has a headache because she ________ too long.
| A．has been reading | B．had read | C．is reading | D．read |