Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
Clearly, if you are spending more than what you earn, you’ll have to （ ）your belt. (tight)
【正确答案】：TIGHTEN
【题目解析】：
tighten; have to 后跟动词。tighten one’s belt 系紧腰带，节省。