We have a learning center kids do self-learning activities.
A.which B.when C.whose D.where
My friend hasn’t answered my letter yet, and I for a reply.
A.waited B.have waited C.am waiting D.will wait
Going camping in the desert will not be enjoyable you have prepared well.
A.because B.when C.unless D.until
---Have I filled out the application correctly, Mr. Smith? ---Well, you one question here.
A.missed B.miss C.will miss D.are missing
you paid for the taxi fare, please let me pay for our dinner.
A.Until B.Since C.Unless D.Although
Last month we spent so much to have the roof , for it was broken.
A.replaced B.replacing C.to replace D.being replaced
