"The president's report," a smile on his face, he continued, "___ to several hot topics, discusses how to increase peasants' income."
________ more careful, his ship would not have sunk.
We ________ our lives had it not been for the policeman.
Wang Ling, one of my friends, is very good at English. He speaks English as if he ________ an Englishman.
The teacher agreed to the suggestion that the students ________ two weeks to prepare for the exam.
I would have come earlier, but I ________ that you were waiting for me.