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1. lena is a very good girl. she always helps her mother about the house. today she has been helping her mother since morning. she has already washed the floor and dusted the furniture.

1.to test

2. -

3  to apply

4  to require

5   to fail

6  to fail

Ithink teenagers all over the world have the same problems. as for me, i get along with other students in my class rather well. they don't call me names, they help me if i need any help. i have no problems with my parents, too. i can invite any friends home. what i'm really fed up  with is sharing a room with my younger brother. sometimes i get so angry with him! my parents aren't happy about his marks at school. so i have to take care of him. i'm depressed of doing his homework with him every day. if i don't help him, my parents won't allow me to go out on saturday evening.

john is helped by mary.

the office is cleaned every day.

this bookstore was built two years ago.

this parcel has been brought by the courier.

the car is being washed.