shethe keys on the table yesterday?
Chinaable to make big planes like C919 with scientists' great efforts?
three astronauts any interesting experiments in space station？
his grandparents live?
the cartoons about friend "ship" very popular on the Internet?
he himself by accident？
your grandparents been to Australia?
—____ I can't see it.
you a ping-pong ball?
your brother have for dinner?
His on the bed.
No, .
the foreigners the Great Wall of China yesterday?
these apple treesby the students in Class 1？