There _____ a lot of rubbish on the floor so I asked Mary to sweep _____ up.
| A．were; it |
| B．are; them |
| C．was; it |
| D．is; them |
–How much salt did you put in the soup?
--I’m sorry to say, _________. I forgot.
| A．none | B．no one | C．nothing | D．No |
Helen ________ her keys in the office so she had to wait until her husband ______ home.
| A．has left; comes | B．left; had come | C．had left; came | D．had left; would come |
People in Tianjin are proud of ______ they have achieved in the past few years.
| A．that | B．which | C．what | D．How |
Bears often hide themselves in places __________ can’t be found by hunters.
| A．in which | B．where | C．that | D．不填 |
There were dirty marks on her trousers _______ she had wiped her hands.
| A．when | B．which | C．where | D．That |