32.Living in the desert involves a lot of problems, water shortage is the worst.
A.of which B.when C.of whose D.Which
31.Only when you have obtained enough data come to a sound conclusion.
A.can you B.you can C.would you D.you would
30.Lessons easily are soon forgotten.
A.1earn B.learned C.to learn D.learning
29.If the building project by the end of this month is delayed,the construction company
will be fined.
A.being completed B.completed C.to be completed D. completing
28.I usually do the washing up and leave the cooking to my wife, she’s a better cook than me.
A.unless B.as C.even though D.in case
27.Many new workers and in six month they will be sent to build a new railway.
A.are being trained B.are training C.will train D.will be trained
26.-Oh, I your camera. Is it all right if I bring it to you tomorrow?
-All right.
A.forget B.have forgotten C.forgot D.had forgotten
25.Was it because she was ill she didn’t go to attend the meeting?
A.what B.which C.as D.that
24.The machine has been used for several years. It needs .
A.to repair B.repaired C.repair D.repairing
23.Be quiet you will wake the whole house!
A.or B.and C.so D.but