- A.How to Reuse Water
- B.Two Solutions to the Problem of Water Shortage
- C.Stop Wasting Our Limited Water
- D.How to Make Use of Seawater
- A.seawater
- B.purified water
- C.the process of getting rid of the salt in seawater
- D.the process of collecting salt from the sea oceans
- A.to have the used water filtered
- B.to put chemicals in it
- C.to pipe it to the users
- D.to pipe the used water to be purified to a factory
- A.turn to the oceans for more water
- B.reuse used water and make use of seawater
- C.desalt seawater
- D.take steps to reuse all water on earth
- A.New Uses For Computers
- B.The Popularity of Home Computers
- C.The Home Computer Industry
- D.Computers At Home
- A.do experiments with water
- B.purify the used water and reuse it
- C.use fresh water once again
- D.make use of seawater
- A.larger and more expensive
- B.smaller and cheaper
- C.more difficult to use
- D.to work more slowly
- A.writing letters
- B.playing games
- C.doing business
- D.all of the above
- A.check the list of goods and materials that are kept in the store house
- B.play games for pleasure
- C.talk with their friends
- D.write letters
- A.good
- B.well
- C.sad
- D.disappointed
- A.No, I don’t mind
- B.Yes, you do it
- C.Yes, my pleasure
- D.I’m afraid not
- A.No, please don’t
- B.Yes, please
- C.No, not at all
- D.Yes, if you like
- A.no more…is there
- B.not any more…isn’t there
- C.no longer…is there
- D.not any longer…isn’t there
- A.supposed
- B.exposed
- C.supported
- D.indicated
- A.lend…to…borrow…from
- B.lend…to…borrow…of
- C.borrow…to…lend…from
- D.lend…for…borrow…of
- A.wouldn’t you
- B.didn’t he
- C.weren’t you
- D.didn’t you
- A.for…to keep
- B.of…to keep
- C.for…keeping
- D.of…to have kept
- A.took
- B.spent
- C.cost
- D.costed
- A.deep…deeply
- B.deep…deep
- C.deeply…deeply
- D.deeply…deep
- A.sent
- B.afforded
- C.left
- D.gave
- A.is
- B.will be
- C.to be
- D.will have
- A.to
- B.with
- C.in
- D.at
- A.a larger
- B.larger
- C.the larger
- D.the largest
- A.as
- B.unless
- C.until
- D.no matter how
- A.think
- B.thinking
- C.thought
- D.account
- A.he
- B.him
- C.himself
- D.by him
- A.reported
- B.reports
- C.has been reported
- D.has reported
- A.helping
- B.to help
- C.being helped
- D.helped
- A.attracted
- B.tempted
- C.persuaded
- D.tended