Some students were late for class because they had been _________ by the heavy storm.

   A. kept        B. stopped       C. slowed         D. delayed

 ________ you don’t lose heart, I’m sure you can pass the coming examination.

   A. Unless      B. If not        C. As long as        D. Although

—How much of the foreign expert’s speech have you understood?

—Almost nothing. I wish I ________ harder at English.

A. worked　　 B. had worked　　 C. would work　　 D. were working

 At the crossroads, you have to drive very ________ to avoid traffic accidents.

   A. quickly      B. cautiously      C. curiously      D. perfectly

 David has to admit the fact ________ he has fallen behind the others in his class.

   A. whether      B. that      C. why       D. when

—Where are you going during the summer vacation?

—I’ve found a nice beach ________ I can enjoy swimming.

　 A. that　　 B. when　　 C. where　　 D. which

 —I’ll be away on a business trip for a week. Would you mind looking after my dog?

  —Not at all. ________.

A. I’d like to     B. I’d rather not     C. I’d like it     D. I’ve no time

 She wants to apply for a ________ in the office of the new government.

   A. position      B. location      C. condition      D. career

 Lady Gaga has put off her concerts because of the difficulties ______ by the ongoing strikes.

   A. causing       B. to be caused     C. caused     D. to cause

 —Jane, have you finished your paper?

 —No, I ________ my sister with her drawing all the morning.

   A. help      B. helped      C. was helping      D. have been helping