I have two sisters, but ____ of them is a teacher.
---Do you know when Dr Smith_____for dinner this evening?----No,but I think he _____when he is free.
_____exciting the news is!
The number of chairs in the room_____ten.I’m afraid a number of chairs in the room____lost.
Some animals in the zoo die of hunger because they_____enough food.
The woman teacher together with her students_________going there_______.