It is a shopping mall ______has been built in ______ used to be a school.

What do you think of the music teacher?—________ she is an elegant lady, she can be extremely difficult to work with.[ ]

Guess what; Yang Yang failed in the maths test .—Howit be？She is second to none in maths.

Sam and Mike aren’t at school. are they

I’m afraid that a ghost is behind the tree!—______! There is no ghost in the world.