— Jack, take more clothes when going camping. It ______ be very cold in the mountains.— Thank you, Mum. I will.

 –Look! The boy is running fast! –He might ______ to catch a bus.

The doctors are doing all that they _____, but the old man is still not breathing properly.

He is sweating heavily. He _______ weightlifting for a long time.

I have lost one of my gloves. I __________it somewhere.