Dr. Zhong Nanshan is a pioneer has made a lot of contributions (贡献) in the field of medical science.( )
A.whichB.whoC.whoseD.what
Taking a subway in Chengdu is much_________ than taking a taxi.( )
cheap
cheaper
cheapest
The girl in the music room _________be Celia.She has gone to the dining hall.( )
can't
must
may
________fine weather it is!( )
What a
How
What
What did you do the day before yesterday?
1_______for an English test.( )
study
studied
studying
______does Mary watch TV?
She watches TV twice a week.( )
How often
How soon
How far