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heavily .
So while you were sleeping ,I called Jenny .
4.学会利用过去进行时表达过去正在发生的事，能够正确使用while 和 when .
学 习目标:
What was she doing at this time yesterday?
Who is she?
What is she doing ?
What was he doing while you were having Chinese class?
What were they doing at noon yesterday?
What were they doing at 7:00 yesterday?
Step 2
1. 闹钟
2.发出响声
3. 开始
4. 突然；忽然
5. 接电话
6. 奇怪的；奇特的
汉译英。
alarm
go off
begin (began)
suddenly
pick up
strange
1. sweep
read
3. wait
4. sleep
5. study
6. happen