The flight to Moscow lasted three and half hours.
A.It took three and half hours flied to Moscow.
B.It took three and half hours to fly to Moscow.
C.It took three and half hours flying to Moscow.
D.It took three and half hours fly to Moscow.

Rich as he was, he never helped the poor.
A.No matter how rich he was, he never helped the poor.
B.No matter what rich he was, he never helped the poor.
C.No matter how rich he had been, he never helped the poor.
D.No matter how rich he was, he had never helped the poor.

A.concerned
B.received
C.attached
D.concealed

A.sugar
B.sister
C.sign
D.singer

A.of
B.cafe
C.knife
D.leaf

A fairy appeared and ............changed her old clothes. ( magic)
A.magical
B.magically
C.magician
D.magics

There is a mistake in the sentence. Find the mistake and correct it.
We had better to review this chapter carefully because we will have some questions on it our test.
A.had better
B.to review
C.carefully
D.some questions

..................I get your car, I'll leave
A.As soon as
B.As though
C.By the time
D.Now that

Nam put up the fence .............prevent hens from going out
A.so
B.so that
C.in order to
D.because

I'm very...............to hear that I will go to Da Lat tomorrow
A.excite
B.excited
C.excitedly
D.exciting