Students should read more ________ books. They can learn a lot from those books.
A.comfortable B.expensive C.educational D.surprising
Tom is a smart boy. He can always come up with some ________ ideas.
A.kind B.cheap C.pretty D.creative
Steven went to help the others ________ he finished his work.
A.after B.although C.until D.since
You won't know the final result ________ you hold on to the end.
A.though B.after C.because D.unless
There will be less pollution ________ more people choose public transportation.
A.until B.though C.before D.if
Bob was talking with his uncle ________ his sister was dancing at the party.
A.though B.after C.until D.while
