My grandparents like stories ____ have happy endings．（ ）
A．theyB．whoC．whichD．/
His grandparents are used in the morning．（ ）
A．to exerciseB．to exercising
C．exercise
cold weather it is!（ ）
A．How aB．What aC．What
There a pencil and some pens in the box．（ ）
A．isB．areC．aren't
They could look after when they were six．（ ）
A．ourselvesB．themselvesC．yourselves
﹣Do you know in class？
﹣Sorry，I didn't go to school，either．（ ）
A．what he saidB．what did he say
C．what he says