英语练习题33
题目内容

PART TWO: LANGUAGE KNOWLEDGE (45分) Section A (15分) Directions: Beneath each of the following sentences there are 4 choices marked A, B, C and D.Choose one answer that best completes the sentence. 21. Trees are useful to man mainly in three ways, the most important of which is that they can protect ______ from droughts (干旱) and floods.

2020-11-13

A.it

B.itself

C.himself

D.Him

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