6.2+12.6+2.8+7.4的值为( )。
A．29
B．28
C．30
D．29.2
参考答案：A
---Go for a picnic this weekend, OK? ---- ______. I love getting close to nature.
A．I couldn’t agree more
B．I’m afraid not.
C．I believe not
D．I don’t think so.
太阳早晨从______面升起，傍晚从______面落下．燕子每年秋天都从______方飞往______方过冬．
