The old man looks healthy.—Yes. He________ some running after he getsup.

There are a lot _______ people today than yesterday.

(2013·河北教学质检)After a year, doctors diagnosed him with a disease so rare ________ it affects just one in 8 million children

Were you satisfied with the exam result? —Not a ______. I should have done much ______.

.__________ he had not hurt his leg, John would have won the race.