When _______, water will be turned into steam.
A
水被加热时会变成蒸汽。因为主句主语water和从句谓语heat的关系是被动的，所以用过去分词。
英语翻译：我希望我的书将阐明我们面临的复杂问题。
The vehicle was traveling at speeds ________ 90 miles per hour.
Anxiety can ________ with children ’s performance at school.
Sincewehaveafocusedsubject，weshouldnottalk________.
