[单项选择]Tom was good at all subjects.

[单项选择]Tom was good at all subjects.

[单项选择]Tom was a good pupil at school.

[单项选择]Negro slavery, many claimed, was good for all ______.
A. concerned
B. is concerned
C. to concern
D. that concerns

[单项选择]The story is not good at all, so it's not worth ______.

[单项选择]Are you good at （）the piano, Tom
A. playing
B. play
C. to play

[单项选择]—Do you know what Tom does all day
—I know he spends at least as much time watching TV as he______his lessons.
A. is doing
B. does
C. spends to do
D. does doing

[单项选择]— Do you know what Tom does all day —I know he spends at least as much time watching TV as he ______ his lessons.
A. is doing
B. does
C. spends in
D. does doing

[单项选择]Tom and I ______ good friends.

[单项选择]—Good morning, Tom. — ______ , Jane.

[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