10A EMPOWER Past modals of deduction p.153a

1. 1. A: We walked all the way home in the snow.

2. B: Wow - that ​ (a)   cold!

• must have been
• may have been
• can't have been
• might not have been

1. 2. A: I think I saw Angela on the bus today.

2. B: No, it ​ (a)   Angela - she's on holiday in the mountains this week.

• must can't been
• may have been
• can't have been
• might not have been

1. 3. A: I saw a stunning jumper in the shop, but I didn't buy it. It's probably too late now.

2. B: Maybe, but let's go back and check - they ​ (a)   it yet.

• might not have sold
• may have sold
• can't have sold
• must have sold

1. 4. A: That's strange. My bicycle tyre's flat. How did that happen?

2. B: I'm not sure. You ​ (a)   over some broken glass or something.

• might not have ridden
• may have ridden
• can't have ridden
• must have ridden

1. 5. A: Where have all the sandwiches gone? The plate's empty!

2. B: Tom ​ (a)   them. He was the only person who came into this room all day.

• might not have eaten
• may have eaten
• can't have eaten
• must have eaten

1. 6. A: I think I've broken my arm - it really hurts.

2. B: I don't know ... you ​ (a)   it. I'm not an expert, but it doesn't look broken.

• can't have broken
• may have broken
• might not have broken
• must have broken