[单项选择]Whatever the rule is, you may be sure he will keep __________ it.
A. on
B. off
C. in
D. to

[简答题]You may be sure that the more painstaking the effort, the more effective the writing, and the more rewarding.

[填空题]He seems (able) （　） to understand you, for he keeps asking you the same question.

[填空题]

To whom you may send your email.
You may send your email to your friends who （） in it.

[单项选择]

"Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones," US researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s dementia (早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
"Our research shows that the hormones of pregnancy (怀孕) are protecting the brain, including estrogen (雌激素), which we know has many neuroprotective (保护神经的) effects," Kinsley said.
"It’s rat data but humans are mammals just like these animals are mammals," he added in a telephone interview. "They go through pregnancy and hormonal changes."
Kinsley said he hoped public
A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.

[单项选择]

W：Mike sure was surprised that he had a hard time assembling his new bike．
M：Well，that’s to be expected with no instruction manual．

What does the man imply（）
A. Anyone would have difficulty without directions.
B. It was surprising that store didn’t provide with a manual.
C. Mike expected the bike to be assembled at the store.
D. Mike couldn’t understand the instruction.

[单项选择]You may move out any time you want to because you are old enough to live （　） you want.
A. why
B. when
C. where
D. what

[简答题]When you cut yourself, you bleed; you may even bleed to death if nothing is done to stop your bleeding, for your body cannot live without blood. The blood is carried in your arteries (动脉) and veins (静脉). Until doctors knew how blood moves round in the body, they could not tell accurately the different parts of the body function.