[填空题]You should often s（） the floor to keep it clean.

[单项选择]We will provide you with tips to help you keep your stress levels（）control.
A. for
B. on
C. under
D. with

[填空题]在下列空格处填入合适的词，完成句子。

We should often share food ______ our friends at a restaurant.

[单项选择]Suppose there was a potion that could keep you strong and trim as you aged, while protecting your heart and bones; improving your mood, sleep and memory; warding off breast and colon cancer, and reducing your overall risk of dying prematurely. Studies have shown that exercise can have all those benefits—even for people who take it up late in life. Kin Narita and Gin Kanie, Japanese twins who are national longevity icons, celebrated their 105th birthday last week by planting trees and playing golf for the first time. Kanie suggested that activity might be a key to their long lives. "At this age I walk for two hours each morning for exercise," she said. When Dr. Ralph Paffenbarger started tracking the health of 19,000 Harvard and University of Pennsylvania alumni back in the early 1960s, many experts thought vigorous exercise was downright dangerous for people over 50. But the Stanford epidemiologist turned that wisdom on its head. In a landmark 1986 study, Paffenbarger showed that t
A. people who suffer high mortality
B. people who take little exercise
C. people who walk 40 miles a week
D. people who have a lower rate of heart disease

[填空题]Eating green food can help to keep you（　）(健康).

[单项选择]
How often should the bus come to their stop

[多项选择]You can not keep the appointment you and Mr Smith had made due to your English class. Write a letter to him to:
(1)inform him of your ease, and
(2)offer two other dates for your appointment.
You should write approximately 100 words. Do not sign your own name at the end of the letter. Use "Wang Lin" instead. You do not need to write the address.

[填空题]Please sweep the floor with me，will you
Will you ______ sweep the floor with me

[单项选择]

—I'm sorry to keep you waiting.
—Oh, not al all. I （　）here only a few minutes.

A. have been
B. had been
C. was
D. will be

[单项选择]We should always bear in mind that decisions often result in ______conclusions.
A. urgent
B. instant
C. prompt
D. hasty

[单项选择]If you keep on, you' ll succeed （　）.
A. in time
B. at one time
C. at the same time
D. on time