Trying to save endangered species is a waste of time

Tớ không chắc ạ

I wish they didn't have to work until midnight

I wish the naughty boys didn't draw on the wall

Tớ cũm không chắc lắm

The Nile River is much longer than the Red River

Câu 34 tớ sửa lại là : heat/turns ạ 

31.Listened

32.wouldn't have been

33.has

34.heat/will turn

Phải là were not chứ bạn , câu điều kiện loại hai chia to be luôn luôn là were ạ

a,How often does she go to the cinema

b,She sometimes reads comic books.

c,My brother sometimes rides his bike in the park

Này , bạn copy của mk thì nói cho mk nhé , chứ bạn rén   thế không vui đâu