Reading for fun means much to us and we _______ never tell where its influence stops.

Millie is______ clever a girl thatshe has worked out _______difficult math problems.

Is this the painting ____ you offered $1,000 for on the Internet?—Yeah,I will give you 15% discount if you like it. 

The mid-term exam is to be held ___ the end of this month

I really don’t know____________.