2.LOOK!The bus is coming.因?yàn)橛衛(wèi)ook,所以用現(xiàn)在進(jìn)行時(shí).
3.Bill was waiting for his wife when i saw him.
我看到比爾時(shí)他正在等他妻子,因此用過(guò)去進(jìn)行時(shí).
4.Listen!Someone is crying in the next room.
因?yàn)橛衛(wèi)isten,所以用現(xiàn)在進(jìn)行時(shí).
5.It's Sunday morning.Some children is having a good time in the park.
前面有時(shí)間狀語(yǔ),表示現(xiàn)在的事實(shí),因此用現(xiàn)在進(jìn)行時(shí).
6.mother was watching TV while father was reading the newspaper this time yesterday evening.
昨天的這個(gè)時(shí)候,母親在看電視父親在讀報(bào)紙,因此用過(guò)去進(jìn)行時(shí).
7.while they were having supper.all the lights went out.
用過(guò)去進(jìn)行時(shí)表示在他們吃晚飯時(shí),所有的燈都滅了.