请帮我讲一下现在分词过去分词和不定式的使用区别1.—— very sorry for himself,Tony sat there with his head buried in his hands.A.To feel B.Having felt C.Feeling D.Felt C2.—— of the city life,John dreams of getting back to countryside.A.Tiring B.Tired B3.Neil Armstrong was the first man —— on the moon in July,1969.A.landing B.landed C.to land D.lands C4.My parents and I —— Beijing at this time tomorrow.A.will visit B.visit C.am visiting D.will be visit D5.Eating fruits and veget

请帮我讲一下现在分词过去分词和不定式的使用区别
1.—— very sorry for himself,Tony sat there with his head buried in his hands.
A.To feel B.Having felt C.Feeling D.Felt C
2.—— of the city life,John dreams of getting back to countryside.
A.Tiring B.Tired B
3.Neil Armstrong was the first man —— on the moon in July,1969.
A.landing B.landed C.to land D.lands C
4.My parents and I —— Beijing at this time tomorrow.
A.will visit B.visit C.am visiting D.will be visit D
5.Eating fruits and vegetables can help us get —— from heart disease.
A.protected B.to protect C.protecting D.to be protected A
6.—— to win a gole medal in the coming Olympics Games.Tony has been training hard every day in the last two years.
A.Determined B.To determine C.Be determined D.Be determining A
7.With so many people —— at her,the little girl felt nervous on the stage.
A.looking B.to lood C.looked D.having looked A
8.—— about the student,Mr.Liu called his parents to find out why he didn't go to school this afternoon.
A.Concerning B.To concern C.Concerned D.Having concerned C
9.—— his theory on many calculations,Nicolaus believed the sun was the center of the universe.
A.Based B.Basing C.To be based D.Being based B
10.All those —— about the people in the earthquake-hit area should be thanked.
A.concerned B.are concerned C.who concerned D.concerning A