U3 Grammar revision - 3B1

They _______ be away for the weekend but I am not sure.

• may

• must

It _______be true about dinosaur living in the lake in Congo. It’s impossible!

• might

• can't

She _______ steal things from shops. She’s rich and famous.

• could

• can't

She’s been revising 10 hours a day for 3 weeks. She _______ be exhausted.

• could

• must

This _______be the right answer but we’ll have to check with the teacher to make sure.

• could

• must

I'm sure this is Mia's scarf. It looks the same.

• It must be Mia's scarf.

• It might be Mia's scarf.

• It may be Mia's scarf.

• It can't be Mia's scarf.

It is possible that Jane left the door unlocked.

• She must have left the door unlocked.

• She might leave the door unlocked.

• She might have left the door unlocked.

• She must leave the door unlocked.

Read and choose the suitable answer:

Where is my phone? I _______________ it on the taxi.

• might have left

• may not have left

Carla´s clothes were wet. She ____________ her umbrella

• must have forgotten

• couldn´t have forgotten

• must not have forgotten

I didn't know you needed help. You _____________________ me.

• could have called

• could call

• should called