The problem puzzled me so much that I stopped for a few seconds to try to_______.
| A．make it over | B．make it off | C．make it up | D．make it out |
She _____ when I go to see her.
| A．is always working | B．was always working |
| C．always worked | D．has always worked |
_____ that dress when he first saw you in the street?
| A．Are you wearing | B．Did you wear |
| C．Have you worn | D．Were you wearing |
He _____ English for ten years by the time he takes the examination.
| A．will have been studying | B．would have been studying |
| C．will study | D．studied |
I knew I could not finish the homework _____.
| A．by the time he had come | B．before he came |
| C．until he has come | D．when he comes |
—Where is Peter? —He _____ to Shanghai.
| A．went | B．had gone | C．has been | D．has gone |