Поставить предложения в вопросительную и отрицательную форму. 1) These are pencils 2) It is a tree 3) His wife is fifty 4) Ben is from Canada 5) They are doctors

1) Are these pencils? These aren't pencils.2) Is it a tree? It isn't a tree.3) Is his wife fifty? His wife isn't fifty.4) Is Ben from Canada? Ben isn't from Canada.5) Are they doctors? They aren't doctors.

1)These aren't pencils. Are these pencils? 2)It isn't a tree. Is it a tree?3)His wife isn't fifty. Is his wife fifty ? 4)Ben isn't from Canada. Is Ben from Canada ?5)They aren't doctors. Are they doctors ?