— Both David and his sister left school when they were only 11.— No wonder            of them is poor –educated.

It’s good to give our seats _________ the bus ________the __________.

After several sleepless nights, Mr. Smith ______ a perfect solution to the problems.

—What do you usually do after you have ______ breakfast on Sundays?   —I usually play ______ soccer with my father.

Simon lived in Beijing _________the years 2002-2004．