At last he _____ finish the work ahead of time.
| A．could | B．was able to |
| C．could be able to | D．can be able to |
Mother made a promise ________ I passed the exam, she would buy m e a computer..
| A．if | B．that | C．that if | D．whether |
He tried his best, but he couldn’t ________ the college entrance exams last year.
| A．get through | B．get over | C．get up | D．get away |
Because of my poor English I’m afraid I can’t make myself ____．
| A．understand | B．to understand | C．understanding | D．understood |
I really appreciate that your help is of great _________.
| A．useful | B．value | C．important | D．worth |
He insisted that we ________ rest until we finish the work.
| A．not | B．don’t | C．can’t | D．should |