第2题
You must be very careful when handling these acids______they are very concentrated.
A.as
B.when
C.if
D.while
第3题
Computers are very versatile. This sentence means ______.
A.computers are very expensive
B.computers can do many things
C.computers are very good to play with
D.computers are very cheap
第5题
The four people in the car were going to do ______.
A.something not very important
B.something very important
C.nothing at all
D.anything they liked
第6题
A.with
B.on
C.in
第8题
Electrical ______ made in Japan are very popular with Chinese families.
A.facilities
B.applications
C.instruments
D.appliances
第9题
A.popular
B.considerate
C.careful
D.simple