—World Sleep Day falls on March 21st. Do you think sleep is important?
—I think so. Sleeping well can give you enough ________.
courage
energy
reason
It’s difficult ______ this work today.
He speaks English ______ than any other student in his class.
If it ____ tomorrow, we will have a picnic in the park.
Don’t forget _____ the door when you leave.
Don’t drink ____ water. There is no washroom on the bus.