用ing形式连接以下各组句子,必要时可作其他改动
1.i went into the room.i didn't knock.(without)
2.why don't you go by bus?don't go by train.(instead of)
3.i left the restaurant,i paid my bill.(after)
4.i left the hotel.i met an old friendof mine(on)
5.she can be very rude .she's capable of it.
6.he'll tell you what he thinks,he's not afraid of it.
7.i didn't phone you yesterday.i must aplologize.
8.his favourite sport is fishing.he's very keen on it.
9.she keeps fit.she's always been interested in it.
10.i won the competition.you should congratulate me.