David ________so hard. He is always the first to come and the last to leave.
A.will work B.works C.worked D.was working
When you ride your e-bikes, for your safety, I think you________ wear the helmet.
A.need B.can C.must D.may
Ben has been in China for years, and he can speak Chinese as ________ as the locals.
A.good B.well C.better D.best
— Mom, which skirt looks better on me?
— Sweetheart, I think you look nicer ________ red.
A.on B.for C.at D.in
As a rule to fight against the disease, people now must enter the hall one after ________.
A.another B.others C.other D.the others
Yancheng is a beautiful city that lies in ________ east of China.
A.a B.an C.the D./
