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The company had about 20 notebook computers but only one-third_______used regularly.Now we have 60 working all day long.

A.is               B.are                     C.was             D.were

The company had about 20 notebook computers but only one-third _______ used regularly. Now we have 60 working all day long.（2006浙江）

  A. is            B. are           C. was         D. were

The company had about 20 notebook computers but only one-third ___________ used regularly. Now we have 60 working all day long.

The company had about 20 notebook computers but only one third _________ used regularly.

Now we have sixty working all day long.

 The company had about 20 notebook computers but only one-third       used regularly. Now we have 60 working all day long.

A．is                       B．are

C．was                     D．were

The company had about 20 notebook computers but only one-third _____ used regularly. Now we have 60 working all day long.

A. is               B. are               C. was              D. were

 The company had about 20 notebook computers but only one third _________ used regularly.

Now we have sixty working all day long.

A. is                     B. are                    C. was                          D. were

31.The company had about 20 notebook computers but only one third _______used regularly . Now we have 60 working all day long.

A. is      B. are        C. was       D. were