write the correct form of the verbs.
1.I.....[study] history when my friends.....[come]around.
2.while susan.......[walk] in the street she.......[meet]an old friend.
3. her baby........[wake] up while she.......[clean]the house.
4.he.........[work] when her wife.......[phone]him.
5.the students........[have] a test when the storm.......[start].
6.we.......[see]a falling star while we........[go]fishing in the lake.
7.susan......[fall]down while she........[climb]the ladder.
8.i.........[walk]along the road when i........[see]you with her.
9.tom.........[burn]his hand while he .......[cook]the dinner.
10.dady........[fall]asleep while he......[read]a book.