It was ________ he came back from Africa that year _________ he met the girl he would like to marry.
| A．when; then | B．not; until |
| C．not until; that | D．only; when |
The moment ____ soon, he thought to himself, waiting nervously.
| A．came | B．has come | C．was coming | D．is coming |
-- I remember you were a talented pianist at college. Can you play the piano for me?
-- Sorry, I ____ the piano for years.
| A．don't play | B．wasn't playing | C．haven't played | D．hadn't played |
（2012江西卷）--Look! Somebody the sofa.
--Well, it wasn’t me. I didn’t do it.
| A．is cleaning | B．was cleaning | C．has cleaned | D．had cleaned |
（2013·辽宁卷)We are confident that the environmenr by our further efforts to reduce pollution
| A．had been improved | B．will be imroved | C．is improved | D．was improved |
Hard is feeling uncomfortable.He _____ too much at the party last night.
| A．could drink | B．should drink | C．would have drunk | D．must have drunk |