[单项选择]You will have to practice ______ times before you can do it.
A. many more
B. more often
C. more many
D. more several

[单项选择]You will have to practice ______ times before you can do it.
A. many more
B. more often
C. more many
D. more several

[单项选择]Make sure that you have enough facts before you accuse him.
A. 在你控诉他之前要有足够的事实。
B. 在你控诉他之前要确信你有足够的事实。
C. 在这之前你有足够的事实控诉他。
D. 你要确信你有足够的事实才能控诉他。

[单项选择]-- You should have thanked her before you left. -- I meant _____, but when I was leaving I couldn`t find her anywhere.
A. to do
B. to
C. doing
D. doing so

[单项选择]Before you can fly a plane in the sky you have to learn the ______ of flying it.
A. skill
B. technology
C. knowledge
D. ability

[单项选择]（）you have to do is more practice.
A. All that
B. All what
C. That
D. which

[单项选择]—Have you ______been to our town before —No, it's the first time I ______here.
A. even; come
B. even; have come
C. ever; come
D. ever; have come

[单项选择]-- Have you ______ been to our university before -- No, it's the first time I ______ here.
A. even; come
B. even; have come
C. ever; come
D. ever; have come

[单项选择]Before dropping rubbish into the chute you have to ______.

[单项选择]"Have you ever gone water-skiing before""Oh,yes（）."
A. a dozen of time
B. dozens of times
C. dozens of time
D. dozen of time

[单项选择]-- Have you ______ Beijing before --Not Yet.

[单项选择]______you practice, ______ you have to review before the test,

[单项选择]

Times have changed and the ideas of the young and the old about the same thing are often ill contra diction. For example, parents and teenagers often disagree about the amount of freedom and responsibility that young people (21) to have. The teenager is more independent and often wants to be (22) to choose his own friends, select his own courses in school, plan for his own vocational (23) , and earn and spend his own money, and generally (24) his own life in a more independent (25) than many parents are able to (26) .
Most problems (27) teenagers and their parents yield to (导致) (28) planning and decision making. Within ally particular family, (29) are avoided and problems are solved when all of the persons take (30) in the situation, and (31) in working it out. (32) parents and young people learn how to get (33) well with each other and develop skills in understanding and (34) A. supply
B. afford
C. award
D. allow