The movie star，Zhao Yazhi，looks so young．
So she does．I can't really tell _______．（ ）
A．how old is sheB．how old she is
C．how is she old
wonderful the movie is! I want to see it again． （ ）
A．HowB．WhatC．What a
This is your schoolbag． But I can't find_____．（ ）
A．meB．myC．mine
The opening of our new school will be the morning of Friday July 24th﹣ at 10：00．（ ）
A．atB．inC．on
My little brother， eight﹣year boy， is very bright．（ ）
A．aB．anC．the
Laura， someone is ringing the doorbell． Go and see________， please．（ ）
A．who is heB．who it isC．who is it