动名词作主语与宾语的用法 — 英语填空题
题目
用所给动词的适当形式填空(每空限填一词)。1. ___ (swim) in the river alone is dangerous, so parents should stop children from doing it. 2. The retired athlete never gives up ___ (train), even though he is over sixty. 3. Do you mind ___ (wait) for a few minutes? The doctor is busy right now.