My sister is a clerk. works in a bank near here.
| A．She | B．He | C．I | D．You |
—Could you tell me ______ ?
—By watching English movies.
| A．why did you improve your English | B．when you improved your English |
| C．how did you improve your English | D．how you improved your English |
—______to give back the books to the library before Friday.
—OK. I will.
| A．Remember | B．Remembered |
| C．Remembering | D．To remember |
As we all know, a dictionary is a book ______ gives the meaning of words.
| A．which | B．what | C．who | D．whom |
—Have you known Mr. Smith for a long time?
—Yes, since he ______ to our university.
| A．come | B．came | C．comes | D．has come |
I didn't manage to repair my car ______ you had told me how.
| A．until | B．when | C．unless | D．because |