完形填空
Mike is very 1 at maths. Mary, his sister, is not good at it. Mike often helps her 2 her maths. One night Mike and Mary 3 out their exercise—books and began 4 their lessons. Soon Mike finished his homework, but his sister 5 . She couldn't work out the last problem. “Let me 6 you,” said Mike. “No, please 7 . I'll do it 8 ,” said Mary. She thought and thought, and 9 an hour she worked it out. She10 very, very tired, but very, very happy.
( ) 1.A.well B.good C.better D.best
( ) 2.A.to B.in C.with D.of
( ) 3.A.make B.takes C.took D.to take
( ) 4.A.make B.to make C.do D.to do
( ) 5.A.don't B.can't C.didn't D.finished it
( ) 6.A.help B.to help C.to call D.say to
( ) 7.A.don't B.didn't C.can't D.couldn't
( ) 8.A.himself B.myself C.herself D.by me
( ) 9.A.before B.behind C.after D.in
( )10.A.be B.is C.was D.were