Read the sentences and drop the missing words in the gaps.
1. It is cold outside now. Solgo out.
.
2. I borrow your book please? Yes, you can.
3. Today is Sunday. We don't
go to school.
4. Tomorrow is Monday. I go to school tomorrow.
5. The room is very hot. I open the window? Yes, you can.
can
have to
mustn't
​