I’m not sure _______my friend can come here or not tomorrow.A. whether B. when C. if
Alice is as ______ as her mother.A.beautifulB.more beautifulC. much beautiful
______ she is very tired , ______ she still works hard.A.But;\B. Although;butC. Although;\
I didn't go shopping ______ the bad weather.A.because B. because of C.so
Where did you go ______ vacation ?A.at B.on C.in
Mike is ______student in his class .A.better B.good C. the best