1 . Father went to his doctor for______about his heart trouble.

A．an advice	B．advice
C．advices	D．the advice

2 . The Spring Equinox (春分) signals the equal ______ (long) of the day and night time. (所给词的适当形式填空)

3 . These fishes typically live between the surface of the ocean and a __________ (deep) of about 3,300 feet.   (所给词的适当形式填空)

4 . Judging from his _____________(appear), he must be from the USA.

5 . I have been told that the new law will come into ______ on January 1st next year.

A．effect

B．use

C．service

D．existence

6 . There are ______ that high school cheating may be on the rise.

A．evidences

B．symbols

C．sights

D．scenes

7 . More and more people choose to shop in a supermarket as it offers a great ____ of goods.

A．expression

B．mixture

C．variety

D．combination

8 . Instead, it seems that creative thinking is a (n)       of habits.

A．affair

B．business

C．matter

D．problem