I’m always ________ about what I say because careless remarks are likely to hurt others’ feelings.
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A
enthusiastic
B
curious
C
doubtful
D
cautious
推荐题目
 There were two boys in the lab, ______did the experiment successfully.
#20930
A
the clever of whom
B
the cleverer or whom
C
the clever of them
D
the more clever of them
This book is well worth _______. Would you like to buy one?
#18840
A
to read
B
being read
C
reading
D
to be read