1.We hadn't known that Lan had an accident. We hadn't visited her.
\(\rightarrow\)If we...........
2.Measles (take)............... a long time to get over.
3.We asked her to take part in but she made no............... to us. (respond)
4.Martin looked at her ................ (thoughtful).
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1.We hadn't known that Lan had an accident. We hadn't visited her.
→→If we.......had known that Lan had an accident,we would have visited her....
2.Measles (take)........takes....... a long time to get over.
3.We asked her to take part in but she made no...respondence............ to us. (respond)
4.Martin looked at her .....thoughtfully........... (thoughtful).