---- Sorry, I can't find the books you asked for.
---- __________.
A. All right.
B. It's your fault.
C. Thanks anyway.
D. I won't forgive you.
The reason _________ the little actress has been such a success is ________ she is both clever and hardworking.
A. why; that
B. why; why
C. that; because
D. for; because
I have no idea _______ we can do with these waste materials.
A. that
B. what
C. whether
D. if
FBI stands _________ Federal Bureau of Investigation.
A. in
B. by
C. for
D. with
His work _________ have been completed; otherwise, he wouldn't be enjoying himself on the beach.
A. should
B. must
C. can't
D. shouldn't
He wondered __________ the pyramids were built.
A. what
B. that
C. if
D. how
