The US President Obama told the students that he ______ by a single mother who were strict with him and wished him great success in his studies.

A．will have been brought down

B．has been carried out

C．was brought up

D．was about to be cared for

一般来说，大班幼儿所处的游戏水平是（）。

A.独自游戏

B.平行游

C.联合游戏

D.合作游戏