—Could you tell me ________?
—Sorry, I'm not sure.
A.when will we go to school B.when did we go to school
C.when we will go to school D.when we went to school
— Tom, what did you do yesterday?
— We ________ classes in Studio Classroom.
A.have B.had C.is having D.was having
Sixteen Cabin Hospitals (方舱医院) ________ in Wuhan in February, 2020.
A.build B.built C.are built D.were built
My brother ________ in America for two months. We all miss him very much.
A.studies B.studied C.has studied D.was studying
We believe China is ________ country in the world.
A.strong B.more stronger C.stronger D.the strongest
I often ________ dishes after supper in summer and winter vacation.
A.wash B.washed C.am washing D.have washed
