<綜合測驗>第26至30題為題組 International trade is the exchange of goods and services between countries. Trade is driven by different production costs in different countries， making ___26___ cheaper for some countries to import goods rather than make them. (A) them (B) such (C) what (D) it
答案
it為形式受詞，代替後面的to import goods rather than make them。
