Peter ________ to help our math teacher carry books yesterday.
Yao Ming works hard on his English and _____________.
A: Do you know __________ the soldiers came to Yushu Town? B: The roads were badly broken. They had to walk there.
A: When did the Shanghai Expo open? B: ___________ May 1st, 2010.
. A: Whose shirt is this? Is it Tom’s? B: No, it isn’t. ______________ is white.
. A: Bob, you look so happy today!B: Well, I got _____________“A ”on my English test.