Not until they left school _________ how much their teachers loved them and helped them.
A. they realized B. did they realize
C. they would realize D. had they realized
Her parents’ quarreling with each other ____led to her family’s breaking up.
A. strictly B. constantly
C. occasionally D. hardly
It’s helpful to put children in a situation ________ they manage everything by themselves.
A. why B. what
C. where D. that
Chris, please ________ a meeting with Mr. Du for me this evening who came back from Canada yesterday.
A. manage B. organize
C. plan D. arrange
The computer system _________ suddenly while he was searching for some important international news .
A. broke down B. broke out
C. broke up D. broke in
As nobody here knows what is wrong with the machine, we must send for an engineer to _________ the problem.
A. handle B. raise
C. face D. present
