what can we do to keep the environment clean?

Wear a hat ,or you will get sunburnt

d

1.gave up

2.have you read

3.havent found

4.have lain

5.have been

15.b  16c

ko chắc câu 40 bạn thử gửi lại mấy anh chị  ko giải thử xem

38.c  39.c  40.c

my father hasnt seen my uncle for nearly 20 years

the last time my father saw my uncle was nearly 20 years

my father last saw my uncle nearly 20 years ago

32.d  33.c

on

1.b   2.a  3.c  4.d