Помогите пожалуйста
Выберите правильный вариант ответа:

1. I must ... this work today.
a) make b) do c) be making d) be doing

2. How ... times did you call me?
a) much b) many c) little d) few

3. It's quiet today, ... no wind.
a) it is b) there is c) it was d) there was

4) If I the weather … rainy, I will stay at home.
a) was b) will be c) is d) be