2009年11月24日,美国对华油管征反补贴税是迄今美对华贸易制裁的最大案。我国产品频繁受到反倾销、反补贴调查和制裁①会使我国企业在对外贸易中受到不公正待遇②是因为我国政府实施贸易保护主义③是因为我国产品的价格低于国际市场价格④将促使我国合理利用WTO规则,积极应诉
If it _____, we will go to visit the zoo.
Our English teacher _____ all the exercise books last Friday evening.
The bus came after I _____ for about half an hour.
I saw that he _____ at seven o’clock last night.
I didn’t go to see the film because I _____ it.