Question

【题目】My math teacher always takes the time ________ difficult questions to us.

A. e xplain B. to explaining C. to explain D. explaining

Answer 1

【答案】C

【解析】句意：我的数学老师总是花时间向我们解释一些难题。take time to do sth.花费时间做某事。故答案选C。