He’s got himself into a dangerous situation _____ he is likely to lose control over the plane.
| A．where | B．which | C．while | D．why |
Maryreally hard on his book and thinks he’ll have finished it by Friday.
| A．worked | B．has been working |
| C．had worked | D．has worked |
Youfeel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it.
| A． | should | B． | need | C． | shall | D． | may |
I believe you will have a wonderful time here you get to know everyone else.
| A．though | B．as if | C．once | D．so that |
Reading her biography, I was lost in admiration forDoris Lessing had achieved in literature.
| A． | what | B． | that | C． | why | D． | how |
Back from his two-year medical service in Africa, Dr. Lee was very happy to see his mother good care of at home.
| A．taking | B．taken | C．take | D．be taken |