一、单句语法填空
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
1. As time goes on, fewer and fewer old men are_______ (abandon) in the countryside nowadays.
2. I don’t really work here; I am just _______ (help) out until the new secretary arrives.
3. The doctor urged me _____ (have) an X-ray test, and then he could make a conclusion.
