1.Do you know whether the man ___by the door is Mr.Smith?Sure.We've known each other for a long time. A.stand B.standing C.stood D.stands 2.It's dangerous___with the wild animal. A.for us to play B.of us playing C.for us playing D.of us to play 3.When are you going to have your hair___?This afternoon. A.cut B.to cut C.cutting 4.Drivers shouldn't be allowde__after drinking,or they will break the law. A.drive B.driving C.to drive 5.We don't know__it next.Let's go and ask Mr.Li. A.what to do B.to do what C.whether to do D.to do whether 6.Our English teacher encourages us___part in all kinds of after-class activities. A.to take B.take C.taking D.to taking 7.How kind you are!You always do what you can__ me. A.help B.helping C.to help D.helps 8.The woman loves animals and she tries___these homeless animals. A.to hurt B.to eat C.to help D.to kill 9.It's a little cold today.Would you mind____the window?—Of course not. A.not opening B.not to open C.don't open D.no opening 10.The reporter didn't go to bed until he finished___the article. A.writing B.write C. to write D.wrote