She is so clever that she can________all the math problems on her own.
—Why don’t you go to visit the Great Wall with us?—Because I _______ there many times.
— John, you ____ the computer game for two hours. It’s bad for your eyes. Stop, please!—OK, Mum.
The roller coaster there was really ____ and everybody was _______ .
Beijing is beautiful city. It’s capital of China .
—Do you mind my smoking here?—________. Look at the sign. It says, “No smoking.”