It's ten years since I _____ to study English.( )
begin
began
has begun
have begun
Today,many winter Olympic sports__________ even by children.( )
A.enjoyedB.enjoy
C.were enjoyedD.are enjoyed
Mr.Smith______ Chinese for two years.He's much better at it now.( )
A.learnsB.was learning
C.has learnedD.will learn
—Lily,what do you usually do after school?
—I_________exercise with my friends.( )
A.doB.didC.will doD.was doing
My parents and I_________ trees last Sunday.( )
A.plantB.will plant
C.are plantingD.planted
—Peter,what are you doing?
—Oh,I_________a report about national heroes.( )
A.will writeB.am writing
C.wroteD.have written