Don’t be afraid of asking for help ___________ it is needed.
A. unlessB. sinceC. whenD. although
___________ time, she will make a first-class tennis player like LiNa.
A. Having givenB. To giveC. GivingD. Given
Jim passed the final exam, ___________ surprised his classmates and parents.
A. thatB. whichC. thisD. it
-You were not in when I came over to your house.
-Oh, I ____________ for a friend from England at the airport.
A. was waitingB. had waitedC. am waitingD. have waited
He looked around and caught a man __________ his hand into the pocket of a passenger.
A. putB. to be puttingC. puttingD. to put
What a kind teacher. But for his help, I __________ my study.
A. wouldn’t finishB. wouldn’t have finished
C. shouldn’t have finishedD. mustn’t have finished