The first thing is_______(put) the tomato in the hot water.

问题描述:

The first thing is_______(put) the tomato in the hot water.
上面应该填什么,说明一下原因

to put
句子是:The first thing is【to put】the tomato in the hot water.
翻译是:第一件事就是将西红柿放进热水里
简析:此处填to put,是动词不定式作表语