A kind passenger paid for my ticket, without which I _______ the last train.
| A．couldn’t catch | B．couldn’t have caught |
| C．didn’t catch | D．hadn’t caught |
It is the third time that he ______ the first prize in the competition.
| A．wins | B．won |
| C．has won | D．to win |
The teacher called Tim’s mother ________ what he had done in the test.
| A．because of | B．because |
| C．since | D．as |
The artist made up his mind to devote all he could his English before going abroad.
| A．improve | B．to improve |
| C．to improving | D．improving |
For many cities in China, there is no room to spread out further, _______ Yangzhou is an example.
| A．for which | B．in which |
| C．of which | D．from which |
The early pioneers had to _____ many difficulties to settle down on the new land.
| A．get along with | B．go after |
| C．go over | D．go through |