用括号中的词连接各组句子
eg:
1,Wewerewalkingdownthestreet.Wemetsomefriends.
改为:Wewerewalkingdownthestreetwhenwemetsomefriend.
2,Acarknockedtheboyover.Hewasbeginningtocrosstheroad..(as)
3,Therewasapowercut.WewerewatchingTV.(while)
4,Ispiltsomemilkonmycleanclothes.Iwasgettingreadytogotoschool.(justas)
5,Shewaswritingane-mail..Thetelephonerang.(while)
6,Shewaswritingane-mail.Thetelephonerang.(while)
7,Hehaslookingforhiswallet.Hefoundherring.(when)
8,Hewaslookingforhiswallet.Hefoundherring.(while)
9,Shewasdoingsomecooking.Thepostmanarrived.(when)
10,Jimwasdrawingahorse.Theteachercamein.(when)
11,Wewerecookinginthechicken.Thelightswentout.(as)
12,Ifoundyourring.Iwassweepingthefloor.(while)
13,Hehurthisleg.Hewasclimbingthemountain.(while)
14,Myplanearrived.Ourfriendswerewaitingattheairport.(when)
15,Iwaswateringflowers.Myfatherwaswashinghiscar.(as)