----- Sorry to have knocked you down.
----- ________. You didn’t mean to, did you?
A. Forget it. B. No problem. C. All right. D. Don’t say so.
Not until they left school ______ how much their teachers loved them and helped them.
A. they realized B. had they realized C. they would realize D. did they realize
. Although the teacher didn’t mention any names, everybody in the class knew who he was ________.
A. attending to B. turning to C. referring to D. talking to
When caught ______ in the exam, he begged for the teacher’s pardon and tried ______ punishment.
A. cheating; escaping B. cheating; to escape
C. to be cheating; escaping D. to be cheating; to escape
Experts predict that the earthquake and tsunami will _________ among the costliest natural disasters on record.
A. clarify B. group C. separate D. rank
It is the best for this kind of plant to grow in ______ is warm and rainy.
A. that B. what C. which D. where
