--- I ______ so busily recently that I ______ no time to help you with your math. --- That’s OK. I can manage it by myself.
–Will you read me a story, Mummy? --OK. You ______have one if you go to bed as soon as possible.
_____difficulty we will face, we should have confidence and try to solve it.
It was too dark, and I couldn’t _______ the words written on the wall.
Maybe you have been too many famous restaurants, but nowhere else _______ such spicy ducks.
Despite the rising costs of many products, bus fares in the city of Zhuzhou ______ unchanged.