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    Three hours ______ enough for us to finish the task.

A.are  B.. has  C. is   D.. were

---“______ twenty dollars a big sum to her?”

---“I suppose so.”

A.Will be　 B. Is　　　 C. Are　　　 D. Were

More than one graduate ______ sent to the hardest place since 1979.

A.is                 B. are           C. has been       D. have been

More than one worker ______ dismissed.

A.have been     B. are    C. has been      D.. has

Nobody but his family ______the secret.

A.know              B. are known      C. have known    D. knew

The two sisters are forced to play the piano. In fact，neither of them ______ to play it.

A.like      B.liked       C.likes      D.liking

Each of the students in our class ______great interest in English and they each _______ a copy of  New English-Chinese Dictionary.

A.shows；have　B.have；has　 C.is；have             D.takes；has

Each of you ______ responsible for the accident.

A. am    B. be    C. is    D. are

They each _____ a new dictionary.

A.has　　　　　 B.have　　　　　 C.is　　　　　　D.are

Three-fourths of the buildings ______.

A.was destroyed    B. is destroyed   C. were destroyed     D. has been destroyed