He caught the train with a few minutes _______.
| A．spared | B．sparing |
| C．to spare | D．spare |
＿＿＿used to be thought that the earth was square.
| A．He | B．What | C．It | D．That |
Does＿＿＿matter whether he can finish the job on time?
| A．this | B．that | C．he | D．it |
Tom’s mother kept telling him that he should work harder, but ＿＿＿didn’t help.
| A．he | B．which | C．she | D．it |
In fact, ＿＿＿is a hard job for the police to keep order in an important football match.
| A．this | B．that | C．there | D．it |
Someone is ringing the doorbell. Go and see ＿＿＿＿＿＿.
| A．who is he | B．who he is | C．who is it | D．who it is |