1.C（筹集的意思,筹款）
2.B（记住就好啦）
3.C(虽然D也对,但注意时态）
4.C（very语气很重, terribly 比较匹配）
5.B（表达谢意）
6.B（如果想用join需要用join in因为它不及物）
7.C（青年,大概指13~19岁的孩子）
1.organize
2.ill
3.physically
4.compete
5.disable
6.unable
7.patient
8.write
9.volunteers
10.teenagers
1.voluntary labor
2.disabled children
3.save the children
4.all over the world
5.hold a painting competition for sb.
6.between 10 and 13 years old
7.have to
8.stay in hospitle
9.such a girl
10.take a photo
11.ues sth. to do sth.
12.to be a volunteer
13.remember doing sth.
14.teach sb to do sth.
15.express one's feeling
16.tow thirds of the children
17.die from a car accident
18.continue doing sth.
19.under 13 years old
20.lose a leg