Millions of pounds' worth of damage __________ by a storm which swept across the north of England.
| A.has been caused | 
| B.had been caused | 
| C.will be caused | 
| D.will have been caused | 
—Was it last summeryou luckily got an opportunity to spend your holiday in Hawaii ?
 —Not me . John was the lucky dog .
| A.that | B.when | C.which | D.what | 
---Must I fill in the form? --No, _______.
| A.you must | B.there’s no need | C.you needn’t have | D.you needn’t to | 
There is a great danger if the driver has been drinking alcohol or taking drugs, or _____ by speeding or breaking down traffic laws.
| A.showing off | B.showing around | C.showing up | D.showing in | 
---What’s wrong with you, Mr. Keller?
  --- I’ve had a very bad headache for two days. At first, I ______ I caught a cold, but the medicine ______.
| A.thought, hasn’t worked | B.had thought, didn’t work | 
| C.thought, hadn’t worked | D.have thought, hasn’t worked | 
Our country did a lot about the drunk-driving, and it took some time ____ the situation got better.
| A.after | B.since | C.unless | D.before |