TO SOLVE THE PROBLEM IS EASY. A. WERE B. WAS C. HAS BEEN D. HAVE B...

ĐỀ LUYỆN THI TỐT NGHIỆP MÔN ANH VĂN NĂM 2011 – T11 DOC

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30/ To solve the problem is easy.

A. were

B. was

C. has been

D. have been

It’s ---