_____ Browns are going shopping this Saturday. They are going to buy _____usefulumbrella.

____________ with the efforts that the students made, all the teachers nodded and smiled.

I’m always ________ about what I say becausecareless remarks are likely to hurt others’ feelings

Mr Smith __________in London for a few years before he_____to China.

He lost his job three months ago; , he was seriously injured in an accident last week.