﹣Whose notebook is this?
﹣It ___ be Alan's.It looks like his.( )
must
can't
might
mustn't
My math teacher lives an active life. She looks as____as she was ten years ago.( )
young
younger
the youngest
youngest
You____stop when the traffic lights turn red.( )
may
needn't
Their parents don't allow them____in the river because it's really dangerous.( )
swim
swimming
to swim
swam
Please_____the TV. It's time to go to bed.( )
turn on
turn off
put on
put off
____people visited Hongyadong, Chongqing on May Day this year.( )
Thousand
Thousands
Thousand of
Thousands of