This is______ difficult problem that few students can work it out.
is a teacher. A. Her B. His C. He
She is doctor. A. a B. an C. x
Who is this ? is Jim. A. this B. This C it
Is she Maria ? No,she . A. is B. isn't C. are
Where is Guilin ? It is in A. Guangxi B. Jiangsu C. Hunan