(2013·河南豫西五校质量检测)The text is too difficult. The explanation of our teacher will help make it easy ________.
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A
to understand
B
to be understood
C
understood
D
understanding
推荐题目
They stayed up until midnight _____ the old year out and the new year in.
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A
and saw
B
to see
C
seeing
D
for seeing
The question _____ at tomorrow’s meeting is of great importance.
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A
to discuss
B
being discussed
C
to be discussed
D
discussed
Play, often ______ as an activity for younger children, is still important in the social development of teenagers.
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A
to see
B
seeing
C
seen
D
to be seen
People in Nome all had diphtheria, a disease that spreads very fast. If ________, it would produce a powerful poison that would kill the patient.
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A
untreating
B
to untreat
C
untreated
D
untreat
When you come into our school yard, you will notice our beautiful school _____by green trees.
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A
surrounding
B
surrounded
C
to surround
D
being surrounded