在职攻硕英语考试

【单选题】 The pressure ______ causes American to be energetic, but it also puts them trader a constant emotional strain.
A．to compete
B．competing
C．to be competed
D．having competed

网考网参考答案：A
网考网解析：
[解析] 动词不定式作定语时，不定式置于被修饰的名词之后。A项与C项的差别在于语态，compete属不及物动词，不能构成被动形式。 查看试题解析出处>>