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
He was _______ to find that it was almost impossible to undertake the task.
A. cast off B. cast out C. cast away D. cast down
I took a risk to carry out the project, but it _______ in the end.
A. paid up B. paid out C. paid back D. paid off
