1 . The factory ________ we are working will be rebuilt again. (用适当的词填空)

2 . ________ _________ _________ the four countries ________ _________ _________ in some areas(eg, the currency and international relations), but they still have very different institutions.
值得赞扬的是，这四个国家的确在一些方面共同合作，例如在货币和国际关系方面，但是有些制度仍然区别很大。

3 . He pretended ________________(work) hard when his boss passed him. (所给词的适当形式填空)