一、单项选择（共20分，每题1分）
( ) 1.Do you like playing ________chess?
A. the B. a C. an D. 不填
( ) 2.In fact，I have lived here 2000．
A.in B. for C.since D.at
( ) 3.——Have you finished doing the work____? ——Not____.
A.already;yet B.yet;yet C.already;already D. yet;already
( ) 4. I can’t do it by myself. I need _________ help.
A. a bit B. a lot C. a little of D. a bit of
