--- My mother has a cold today, and I have to take care of her. --- .
Mike _____the bookshop. I have to wait for him.
It was a long journey, but _____of them four felt boring.
---Sorry, I can’t work out this problem. ---Try again, please. It’s only ______ difficult.
---Dear me! What a wonderful computer! ---My grandpa bought it for my sister and me. It’s ______.
It’s _____ to teach a man fishing than to give him fish.