It is uncertain ________ side effect the medicine will bring about, although about two thousandpatients have taken it.[ ]

－Is your aunt －No. is very heavy(很胖).

Have you had your breakfast yet?—Yes. Mom _____it for me.

raid he’s more of a talker than a doer,which is ____ he never finishes anything．

I can’t believe you got fined for speeding．I of you to be the most careful．