When Li Lei was a small child, he hoped to be ______ policeman after he grew up and finally his dream came true.
Not until then ________ how important the brakes were.
________ to come over to have a talk with him in those days.
—My cousin is very clever but he doesn't work hard at his lessons. —________.
She started singing to the baby and was ________ with a smile.
Was it on a lonely island ________ he was saved one month after the boat went down?(2011·四川)