It’s important __________ us students _______ carefully in class.
| A．for; listening | B．of; listen |
| C．for; to listen | D．of; to listen |
_________ can help us, we had to do it by __________.
A. Somebody; ourselves B. Anybody; yourselves
C. Nobody; ourselves
He had to give up his job ___________his illness.
A. because B. because of C. instead of
It’s easy to _____ this math problem.
A. work out B. find out C. look out
Japan is ________ the east of China.
A. in B. on C. to
The traffic sign “
” means “__________”.
A. go B. stop C. danger