Now teenagers are very busy with their schoolwork all the time and they have _____ time to do sports.
A. few B. little C. a few D. a little
I never doubt ________ his advice is of great _________ to me.
A. that; helpful B. if; help
C. whether; helpful D. that; help
—Is David coming by train?
—He should, but he not. He likes driving his car.
A. can B. need C. must D. may
US First Lady Michelle Obama encouraged students to study abroad in her when visiting Peking University on March 22, 2014.
A. story B. speech C. letter D. diary
Be quick, ___________ we’ll be late for the meeting.
A. and B. but C. so D. or
________ useful advice you gave us!
A. How a B. What an C. What D. How