The old professor travelled from one school to another, _______ first-hand information about the education situation in China.
It rained hard yesterday, __________ stopped me from going to work.
— Go for a picnic this weekend, OK? — __________. I love getting close to nature.
There was __________ time when the two countries were at __________ war.
—Dear, I can find a better job if I go to Germany, maybe. — Don’t be silly. ________, you know.
—Did your classmate accept your invitation? —No, he ____ refused.