--Alvin, are you coming with us?
--I'd love to, but something unexpected ________.
| A．has come up | B．was coming up |
| C．had come up | D．would come up |
--- Have you got ready for the meeting?
--- Not yet. We need ________.
| A．three other chairs | B．other three chairs | C．another three chairs | D．three another chairs |
He took off his coat, _____ all his pockets, but couldn’t find his key.
| A．searched | B．searching | C．to search | D．searches |
He will spend six hours at his desk _______ he finishes his composition.
| A．before | B．until | C．after | D．when |
--- What is the matter with the pen?
--- The ink _______come out.
| A．isn’t | B．didn’t | C．don’t | D．won’t |
Wang Ping can’t be in the bedroom, ?
| A．can she | B．is she | C．can’t he | D．isn’t he |