Tony must _____ good at ice-skating.
A.is B.be C.are
（）当你想向朋友介绍John, 你应该说：
A. I am John.
B. I am John.
C. What is your name?
（）早上，你遇到怀特老师，你应该对他说：
A .Good morning , Miss White.
B.Goodbye , Miss White.
C. Good morning , Mr White.
（）—— Good morning.
—— .
A .Hello. B .Good morning. C .Goodbye.
( )Show your book.
A. IB. meC. my
( ) your pencil box.
A.OpeningB. Open C. Opens