You can’t be ______ when you camp _____ a high altitude, ________ the air is thin.
We decided not to climb the mountains because it was raining ___.
If we work with a strong will, we can overcome any difficulty, ___great it is.
She smiled to the people around but___looked straight ahead, getting hold of her son’s hand.
He’d like to sleep with the window ____ at night.
—— How did you find your visit to the museum? —— I thoroughly enjoyed it. It was____interesting than I had expected.