(1)_____important______someexerciseeveryday.
A.That's;todo
B.It's;do
C.That's;do
D.It's;todo
(2)Achildasksallkindsof_______whileheisgrowingup.
A.troubles
B.matters
C.problems
D.questions
(3)Hisgrandmotherisveryhealthybacausesheoften______.
A.exercises
B.smokes
C.sleeps
D.sings
(4)He______knowtheanswer,butI'mnotsure.
A.maybe
B.maybe
C.may
D.must
(5)Heworksveryhardeverynight,hedoesn'tgotobed______eleveno'clock.
A.after
B.until
C.since
D.in
(6)--CanPetergowithus?
--No,hismotherwantshim_____athometoday.
A.stays
B.stayed
C.tokeep
D.keep
(7)Wearein_____class.
A.same
B.thesame
C.different
D.thedifferent
(8)--Whydon'tyoutrytheSichuanfood?
--Ican'tstandthepepper.Iwantto______.
A.keepgoodhealth
B.keppingoodhealthy
C.keephealth
D.keephealthy