The key answer of exercise 11

1

• It might be because it’s winter and so more people get ill.
• It wouldn’t be happening if so many good doctors weren’t leaving for the private sector.
• It’ll only get worse in the months to come.

2

• He must be homeless.
• He might be ill. He could be having some kind of attack or seizure.
• They shouldn’t have let him on the bus. Someone should’ve offered him a seat.

3

• There must be a bug going round.
• We should have taken on more staff.

4

• He should have more tests.
• He can’t have a serious problem. He must be OK.
• I should check out his diet.

5

• She can’t have recognised me.
• She must be ignoring me.
• I must have done something wrong.
• She should have spoken to me.