____! Jack,, the floor is wet. .
A. Be careful
Be careful to
C. Be careful for
D. Be careful with
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I took some___ in China last year.
A. photos
B. potatoes
C. paintings
D. tomatoes
Don’t swim in the river. It’s too ______.
A. interesting
B. easy
C. difficult
D. dangerous
The teacher told us not___ our dictionaries to school the next day.
A. to bring
B. to take
C. bring
D. take
--What would you like to say to your____before leaving school? --I’d like to say "Thank you very much!"
A. workers
B. nurses
C. waiters
D. teachers