He is always helping people without expecting anything _______.
– How did Mary react to the bad news? – Oh, she was filled with sorrow and ______ a sigh.
He was about half through his meal ______ a familiar voice came to his ears.
– What a heavy rain! – So it is. We have to delay ______ the sports meeting until it is fine.
Having gone through several rounds of selection, the young man ______ gained a chance to perform in China Talent.
– How’s your new class teacher? – We ______ ask for a better one. All my classmates love him so much.