A.Yes，we do.
B.OK，let’s do it.
C.I’d like to.

A.boys friends
B.boy friend
C.boy friends
D.boies friends

A.we
B.uS
C.our

A.pursued
B.proposed
C.tracked
D.traced

A.ought to work
B.ought not work
C.must work
D.must not work

A.symbols
B.symptoms
C.indications
D.signs

A.refused
B.returned
C.reversed
D.recovered

A.Stay in touch
B.Just wait and see
C.Sounds great
D.Come this way

A.It is made in America
B.Well，just over there
C.Yes，please

A.chances
B.challenges
C.chains
D.changes