[单项选择]My little sister is only five, ______ she can swim well.

[单项选择]My little sister is only five, ______she can swim well.

[单项选择]My little sister is only five, ________ she can swim well.

[单项选择]My litter sister is only five, ______ she can swim well.

[单项选择]My litter sister is only five,__________ she can swim well.

[单项选择]I spotted my little sister in a crowd _________ around the street-corner stand.
A. residing
B. patrolling
C. sneaking
D. clustering

[单项选择]Though he had often made his little sister ______,today he was made by his little sister. ( )
A. cry, to cry
B. crying, crying
C. cry, cry
D. to cry, cry

[单项选择]We have got only five textbooks for the children ______ we need ten. So I'm afraid they will have to share.
A. because
B. since
C. when
D. once

[单项选择]

Passage Four
If we had to rely on only five senses for survival, we would be in very sad shape indeed. We wouldn’t know up from down. We wouldn’t know when to eat or drink. We wouldn’t know what our muscles were doing or what position our limbs were in. We wouldn’t know when our body was damaged, because we wouldn’t feel pain. We might freeze to death without even a shake, or overheat without a drop of sweat. The five senses--touch, taste, smell, hearing and sight--respond only to stimulation from the out- side world, but the inside world of our bodies must also receive and respond to important messages.
Our internal senses keep us alive and enable us to use our external senses. In effect, the internal senses tell our brains how to run our bodies. Hunger and thirst register in a part of the brain called the hypothalamus, when a lack of food chemicals are detected in the blood.
Another internal sense that controls our ba
A. fire
B. start
C. signal
D. revise