`text{1.I came across my sister at the party.}`
`text{2.If I won the lottery,I would buy a brand-new car.}`
`text{3.She admitted having made a mistakes.}`
`text{4.I enjoy playing football at the weekend.}`
`text{5.I can't help laughing every time I remember what happened.}`
`text{6.Before I set off on my hoilday,a mechanic had checked my car for me.}`
`text{7.I didn't fancy drinking out of such a dirty glass.}`
`text{8.I would have been able to buy a better laptop if I had had more money.}`
`text{9.The mosquitoes made us so annoyed that we decided to buy a repellent.}`