By the time I locked the door, I realized I ________my keys at home.
---I find _________ hard _________ me to understand his handwriting.---It’s polite _________ you to say so. His handwriting is too bad.
— It is reported that both of _______ two kids were saved out of the river by _______ university student.— True. He was really brave, wasn’t he?
—The boy’s father failed to find a job. ______. He got a cancer.—How sad! We should give him a hand.
—Sir, could I hand in my homework a bit late?— _______, since you’ve been unwell these days.
— The light in his room is still on. Do you know _______?— Maybe at midnight again.