— Could you tell me last night?
— He went home by taxi.
| A．what Tom did | B．what Tom was doing |
| C．how Tom goes home | D．how Tom went home |
I can’t stand _____ for you so long.
| A．to wait | B．waiting | C．waits | D．waited |
There is _____ pollution in the world. We must stop it.
| A．much too | B．too many | C．many too | D．too much |
The cleaners must prevent the street ______.
| A．getting dirty | B．from dirty | C．from get dirty | D．from getting dirty |
None of us _____ running, but we all like swimming.
| A．likes | B．liked | C．liking | D．would like to |
He is tall, _____ his son is short.
| A．when | B．or | C．while | D．and |