Rewrite the sentences with the given words without changing

Giúp với a
----- Nội dung ảnh -----
Rewrite the sentences with the given words without changing:

37. It is raining heavily, so I can’t go out.
Because ________________

38. Where are the eggs? They were in the fridge. (which)
____________________

39. We can’t make tea with cold water.
Tea ________________

40. The last time I talked to him was 2 months ago.
I haven’t ________________