Be quiet, and ________ my words.

1. A.
   take attention to
2. B.
   pay attention to
3. C.
   put attention to
4. D.
   make attention to

—Be quiet, Mr Smith is coming.

—Don’t worry. It ＿＿＿ be him. Mr Smith is much taller.

A.  mustn’t      B.    must   C.     can’t

Be quiet, please. I can’t _______ the guide.