—Are these your English books? —Yes, ________A、they’re B、they are C、these are
The number of books in the bookshop is about 10,000 and a number of them ________ about science. is B.was C.are D.Were
--- Do you believe that paper is made ________ wood? —Yes, I do.And you can see that books are made ________ paper.
It was a ________ day and she felt very ________.
When I passed the classroom, I heard a girl ________ in it.
—Can I walk across the road now, mum? —No, you ________.You have to wait until the light turns green.