If you keep on working hard, I have no doubt ______ you’ll be successful in the future.
A. whether B. when C. that D. If
My father has never been to school, so he can ________ read _______ write.
A. hard, or B. hardly, or
C. hard, and D. hardly, but
She devoted as much time as she could ____________ others.
A. help B. helped C. to helping D. Helping
Sam is a little weak in English and he has _____ what the teacher says in class.
A. difficult to understand
B. difficult understanding
C. difficulty to understand
D. difficulty understanding
______ great fun they had singing and dancing last Sunday night!
A. How a B. What a C. How D. What
Not only you but also he ________ to my birthday party.
A. have been invited B. has been invited
C.are invited D.invited