The mixture of his improved self-confidence and never-ending efforts is ________ lies behind his rapid progress in his study.
A. what B. that C. where D. which
Taking a gap year is a good chance for students to learn skills and gain life experience, ______ them an edge in the job market.
A. given B. to give C. giving D. having given
If you________ the failed experiences, you would not havemade such a mistake in your homework.
A. refer to B.have referred to
C. referred to D. had referred to
Humor, if ________ properly, will help us break the ice and gain affection of others in social communication.
A.using B.used C.to use D. to be used
— Do you have the time? I've got something to tell you.
— Ok, ______ you make your story short.
A. now that B. even if
C. so long as D. in case
–— It is unwise for some people to drive and talk on a cell phone.
–— _______. It's very dangerous.
A. I couldn't agree more B. Not really
C. Good idea D. That's great
