4. 1-3 正确
4.Who did he met on the way?
5.Where were they looking for gold?
6.Why were they wearing thin trousers?
7.What did Levi take for boat sails to Califonia?
8.What did he make from the cloth?
5. 1.was not (wasn't)
2.were
3.visited
4.worked
5.went
6.were eating
7.did you do
8.did
9.watched
10.were watching
11.arrived
12.went
13.did not see (didn't see)
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