Question

【题目】Tom's mother always encourages him ___________ (work) out problems by himself.

Answer 1

【答案】to work

【解析】

句意：汤姆的母亲总是鼓励他自己解决问题。

encourage sb to do sth鼓励某人做某事，由此判断空格填不定式作宾语补足语；work工作，动词；故答案为 to work。