1. when(1) When I ________________(到达机场), the guests had left. When they heard the news, they jumped with joy. = When __________ the news, they jumped with joy. = While ____________ the news, they jumped with joy. When the medicine is taken with water, it works better. = When/ while _______ with water, it works better.(2) I was about to go out _____ it began to rain. They were watching TV _____ suddenly the lights went out. We had just settled down _____someone knocked at the door.2. ...
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