I’m not sure if it________ tomorrow. If it __________,we’ll put off the match.

A.i

B.y

C.i

D.y

For your never-ending effort, I’m sure you ()this praise.

A.deserve

B.serve

C.reserve

D.conserve

A.I’m majoring in Interior design

B.I’m not sure

C.Who knows

All things considered, I'm sure we made the right decision.()

With the joint effort of everyone, the plan is ______ to succeed; I'm sure of that.

A．obvious

B．bound

C．doubtless

D．necessary

—Is she really ill？

—______. She's in hospital.

A) I hope so B) I'm sure

C) I don't think so D) I'm afraid so

A.if

B.what

C.when

D.where

I'm not sure whether we can gain any profit from the (invest) ______.

I have not found my book yet. I'm not sure ____ I could have done with it.

A) whether B) what C) why D) where