-- You know who came to our school yesterday?-- Professor Smith? We once met at a conference.-- ______. He came and gave a wonderful speech.
In summer there is________swimming as a means of keeping fit.
From his________look,I could see that he didn’t believe what I said.
According to statistics,a man is more than twice as likely to die of skin cancer________a woman.
You did very well in all your subjects—________,you passed the midterm examination.
The conference has been held to discuss the ________of global warming on people’s lives all over the world.