–What do you often do _____classes to relax yourselves?
---We often do eye exercises. Listen to music or do some running around the school.
A. in B. among C. between
---May I use your dictionary?
---_____.
| A．Never mind | B．You are welcome | C．It doesn’t matter | D．Certainly. Here you are |
He was so tired that he fell asleep ___he went to bed.
| A．as if | B．even though | C．ever since | D．as soon as |
Last Thursday when I got to the airport, I ____I had left my ticket at home.
| A．forgot | B．realized | C．believed | D．seemed |
There are two new buildings near the sea, and ____of them are very tall.
| A．none | B．all | C．neither | D．both |
The boy ____won the first prize is called Roy.
| A．when | B．whom | C．who | D．which |