Mr.Smithisingoodhealthnowforitisquitealongtimesincehe__________.
A、notsmoked
B、smoked
C、hassmoked
D、begantosmoke
Ourteachersmadeus________alotofhomeworkafterschool.
A、todo
B、doing
C、do
D、tohavedoneuntilsevenoclock
Iwantyour_________,sir.Idontknowwhattodo.
A、advices
B、pieceofadvices
C、advice
D、advise
It'sseventhirty.I_________gotoschool.
A、havegot
B、havegotto
C、gotto
D、hadgotto
Theboyboughtanewdictionary__________heturnedforhelp.
A、fromwhich
B、intowhich
C、which
D、towhich