Complete the gaps in the sentences with the modal verbs.must,

Complete the gaps in the sentences with the modal verbs.
must, may, may not, might, might not, could, can't

1. She goes out every evening. She have a family. 2. He looks depressed he be having some problems. 3. This woman looks like a politician. She work for the government. 4. Hes got a very nice sun tan. He be working in an office all day. 5. Her clothes are all very expensive. She be earning a lot of money. 6. He often goes abroad. He be working for the Secret Service.