2. 职称英语
  3. The guide wheels of a roller coaster are used for______on straight-aways and hil

The guide wheels of a roller coaster are used for______on straight-aways and hil

游客2024-01-02  18
问题 The guide wheels of a roller coaster are used for______on straight-aways and hills.
选项 A、as gliding
B、to glide
C、gliding
D、glided
答案 C
解析 The sentence needs a noun structure as the object of the preposition for. The answer, gliding, is a gerund.
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