Tom didn’t go hiking with his classmates ____ his illness.
--Jane, your music is too noisy. -- Oh, sorry. I’ll right now.
— What do you think of this math problem?—It’s too easy. _____ in our class can work it out.
---Mr. Wang, I have trouble the text. --- Remember it three times at least.
---I think _________________ in the morning is a good way to improve your spoken English. ---I agree with you.
---It’s difficult for the villagers to cross the river. ---I think a bridge______ over the river.