2. 外语
  3. There are many machines______one form of movement into another.

There are many machines______one form of movement into another.

admin2019-07-01  40
问题 There are many machines______one form of movement into another.
选项 A、to convert
B、to be converted
C、the conversion of
D、are converting
答案A
解析 The infinitive phrase beginning with to convert is an adjective that modifies machines.
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托福（TOEFL）

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