When_______,waterwillbeturnedintosteam.
A、heatedA
水被加熱時會變成蒸汽。因為主句主語 water 和從句謂語 heat 的關系是被動的，所以用過去分詞。
英語翻譯：我希望我的書將闡明我們面臨的復雜問題。
It is vital that the work _______ in time.
Thegovernmentfinally________allthedocumentsrelatingtothewar.
A year later，with the nation’s economy ________，Bush’s approval rating dropped below 40 percent
The outline of rooftops and chimneys ________ against the pale sky.
