It was quite a serious accident, caused by careless driving.
| A．which I think was | B．I think which was |
| C．which I think it was | D．I think which it was |
Some people would rather ride bicycles as bicycle riding has _____ of the trouble of taking buses.
| A．neither | B．nothing | C．some | D．none |
The reason being late for the meeting was his little son fell ill this morning.
| A．for, that | B．why, that | C．for, because | D．why, because |
Only when he returned______ the truth.
| A．he found out | B．did he find out | C．he finds out | D．does he find out |
Without my glasses, I couldn’t _____ whether that figure on the blackboard was a three or an eight.
| A．make out | B．make up | C．make for | D．make off |
– Who are playing football in the gym now?
– ________ the students from No. 1 Middle School.
| A．They are | B．It is | C．There are | D．That is |