He doesn’t drive his car ______, so he always has traffic accidents.
A. careful enough B. enough careful
C. carefully enough D. enough carefully
Mary’s English is so poor that she always dare not ______English in public.
A. speak B. to speak
C. speaking D. Speaks
Air pollution has become ____than ever before. We must do something to stop it.
A. the more serious B. more serious
C. seriouser D. the most serious
You will make great progress in English ______ you never give up.
A. and B. as long as C. or D. But
Who is going to take care of Tom when his parents are away ____ business?
A. in B. with C. for D. On
David gave two______ his money to the poor children in the countryside.
A. millions of B. million C. millions D. million of
