помагите пожалуйстаа тесты по английский дам 50 баллов

1. Choose the correct world.
The ..... cycle is how ..... moves and changes on the Earth.
A)air B) water C) wind D) heat

2. Choose the correct articles.
How do ..... sun, ..... air and..... water make ..... weather?
A) -, a,-,a B) the, a, the, the C) the, the, the, the D) a, an, the, the

3. ..... Lake Baikal is ..... deepest on ..... Earth.
A) the, the, the B)-,-, the C)-, the, the D) a, an, the, the

4. Choose the correct modal verb.
People ..... pollute rivers, lakes and seas.
A) must B) should C) shouldn't D) have to

5.You ..... never leave the tap open.
A) shouldn't B) can't C) haven't to D) should