The book is _______.You’d better buy it.
A. useful
B. useless
C. use
D. careful
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Swimming in the sea is ________ than swimming in a pool.
A. exciting
B. more exciting
C. excitinger
D. excited
It’s time for CCTV news.Let’s ______ the TV and watch it.
A. turn on
B. get on
C. try on
D. put on
We should learn English step ______ step.
A. at
B. on
C. in
D. by
-- What does “No Entry” mean? ________.
A. 禁止入内
B. 禁止吸烟
C. 禁止触摸
D. 禁止喧哗