--Gao Shan, be careful with your bags on the train.
--_______, I can look after them well.
A.I think so B.Good idea C.Don’t worry D.Of course
I’m going to stay at home________it’s raining outside.
A.because B.so C.but D.and
Everything is________sale on black Friday, some even up to 80% off.
A.for B.on C.with D.at
There________a heavy rain in the north of China tomorrow.
A.will have B.will has C.will be D.has
There are________workers in the factory.
A.thousand of B.five thousand of C.five thousands D.thousands of
If you want to get good grades, you must _______your lessons carefully.
A.go over B.go down C.go up D.go for