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If it  　　for your help,we would be in serious trouble.

A.isn’t　　　　B.aren’t　　　C.hasn’t been　　　　D.weren’t

I do every single bit of housework　　  my husband Bob just does the dishes now and then.

A.since　　　　　　　B.while　　　　　C.when　　　　　D.as

He admits that his political life is　　　 .

A.at stake　　　B.at danger　　　　C.at difficult　　　D.in trouble

How much did the hotel　　  you for a room for the night?

A.ask 　　　　B.cost　　　 C.take　　　 D.charge

Many people poured into big cities from the countryside      a better life.

A.look for       B.to search      C.after     D.in search of

The traffic lights have 　　　 from red　　　  green.

A.transformed;into　　　　　　　　　　　　B.changed;into

C.transformed;in　　　　　　　　　　　　　D.changed;to

It has been decided that this company has the _____ right to print Mr. Smith's novels.

A.eventual  B.versatile   C.extensive  D.exclusive

In aerospace devices the weight of the necessary power producing equipment is _____.

A. vital    B. possible    C. capable    D. reliable

--The wall of your room doesn't look nice.  ---I wish I ___ it green.

A. shouldn't have painted   B. wouldn't painted   C.hadn;t painted   D. don't paint

When the entire class worked together they finished the project _____.

   A. in no way       B. in no time

   C. on no account   D. in no case