We’ll do what we can _________ our environment.
| A．protect | B．to protect | C．be protected | D．be protecting |
We arrived Beijing a sunny morning.
| A．at;in | B．in;on | C．in;in | D．at;on |
There is with my watch.It works well.
| A．something wrong | B．anything wrong | C．nothing wrong | D．wrong something |
The house is not for us to live in.
| A．small enough | B．enough small | C．big enough | D．enough big |
What nice weather!Whatgood time we are having!
| A．a;a | B．a;/ | C．/;a | D．/;/ |
The park ______we visited yesterday is an excellent one .
| A．where | B．in which | C．whose | D．that |