—Can you understand me? —Sorry. I can _________ understand what you’ve said.
——_________ should your robot need_________ batteries?——Every two months.
——_____ wonderful news report he wrote!——Yes, and I think it is well worth .
I never doubt ______ his advice is of great ______ to me.
The Smiths ______ sending e-mails ______ letters because it is faster.
This pair of jeans looks nice_____ Lucy because she looks nice.____ blue.