She heard a terrible noise, _______ brought her heart into her mouth.
| A．it | B．which | C．this | D．that |
Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.
| A．why | B．that | C．when | D．where |
To save class time, our teacher has ______students do half of the exercises in class and complete the other half for homework.
| A．us | B．we | C．our | D．ours |
The _____ of his clothes indicated too clearly that he had been playing football.
| A．state | B．condition | C．occasion | D．situation |
It’s hard for him playing against me.I’ve got nothing to play for,but for him,he needs to win so______.
| A．far | B．well | C．little | D．badly |
Polar bears live mostly on_____ sea ice, which they use as ____platform for hunting seals.
| A．a;a | B．a;the | C．/;a | D．the;/ |