[单项选择]It isn't good ______ you to stay outside in the sun all day.
A. for
B. with
C. in
D. at

[单项选择]It isn't good ______ to stay outside in the sun all day.
A. your
B. for you
C. you
D. with you

[单项选择]It is a common ______ : Should you stay where you have friends and family, or take that good job in a far-away city


A. perplexity
B. paradox
C. bewilderment
D. dilemma

[单项选择]May I stay with you and Jack（）going back to my parent's home this afternoon
A. because of
B. so as to
C. in spite of
D. instead of

[单项选择]May I stay with you and Jack （）going back to my parent's home this afternoon
A. because of
B. so as to
C. in spite of
D. instead of

[单项选择]Mary, ______ here everybody else, stay where you are.
A. come
B. comes
C. to come
D. coming

[单项选择]Mary, ______ here everybody else, stay where you are.
A. come
B. comes
C. to come
D. coming

[单项选择]I will stay with you ______ there is a room free.
A. as far as
B. as long as
C. so far as
D. in case

[单项选择]If you expect too much of the students, you are sure to ______ disappointed and miserable.
A. grow up
B. bring up
C. end up
D. come up

[单项选择]Which one of the following isn’t located in the superior mediastinum ？（）
A. trachea
B. superior vena cava
C. brachiocephalic v.
D. vagus n.
E. greater splanchnic n.

[单项选择]If you want to lose weight, you should not take such food ______ really necessary.


A. as is
B. as it is
C. as it was
D. as was

[单项选择]What can you do to ensure that you will stay healthy
A. be assured
B. insist
C. prove
D. secure

[单项选择]

Good locks on all outside and first floor windows are essential to a home’s security and will go a long way toward discouraging burglars. But an added protective device that is increasingly being used in homes is the burglar system, which sounds a loud bell, horn, or siren (警报器) when someone tries to break in. Although this will not always prevent entry by a determined professional burglar, it is often enough to scare off vandals (故意破坏他人财物者) and spurn-of-the- moment thieves who account for a high percentage of residential break-ins.
Security alarm systems have been available for many years and have long been common in commercial and industrial establishments and in large homes. But until the last few years, these systems were almost always professionally installed because they required complicated wiring techniques, individualized design, and sometimes lots of carpentry, all of which made them expensive.
To answer the demand for low-cost alarm system
A. instructive
B. informative
C. opposed
D. funny