Correct Grammar sentences.

I need help with correcting those sentences with the correct present form of the verbs in the brackets.

Brussels (have)grown rapidly in the last decade.

Mathematics (be) becoming more and more popular.

The military have surrounded the building.

Glasses (cost) quite a lot these days.

Do you think five pounds (be) a big enough tip?

(be) three weeks a long time to wait for an answer?

A number of people (have ) complained aabout the traffic congestion.

More than one person (disagree)

The rest of the members (be) ill.

Her offspring ( be) like her in every respect.