Alice, I can’t find my bike.— Don’t worry. I saw ______ black one under the tree. Is it yours?

We communicate _____ each other _____ letter.[ ]

Mr Green has_____ one-year-old son, doesn’t he?–Yes, and he also has ______eight-year-old daughter.

The old woman is weaklook after herself. [ ]

They will not go to the concert if it tomorrow.