The two runners are neck and neck; _______ of them could win the race.
| A．either | B．neither | C．all | D．none |
There is no simple answer, _____ is often the case in science.
| A．as | B．that | C．when | D．where |
It's good to knowthe dogs will be well cared for while we're away.
| A． | what | B． | whose | C． | which | D． | that |
I stopped the car ____ a short break as I was feeling tired.
| A．take | B．taking | C．to take | D．taken |
_________I have to give a speech, I get extremely nervous before I start.
| A．Whatever | B．Whenever | C．Whoever | D．However |
— Oh no! We’re too late. The train _______.
— That’s Ok. We’ll catch the next train to London.
| A．was leaving | B．had left | C．has left | D．has been leaving |