Great changes have taken place since then in the primary school _______I am studying.

Look! That man looks like Mr．Brown．—It ________ be him, for I know he is at home．

She ________ speaking in front of many people because she is so shy.

If I have a big house, I will——- a pet dog.

My brother and I will go to the library tomorrow.—_______. Shall we go together? [ ]