算一算，填一填。

72 -8                  72÷9                5×9+32              3×6÷2    

36÷4                 56÷7                45÷9×7            28÷4×3     

5×8                   4×7                 20÷5×6             72÷8÷3     

46 - 38               45÷5                81÷9÷9              8÷4×9

得数比10小的（    ）；得数比10大的（    ）。

In my opinion, you’d better eat and sleep more _________ lose any more weight.

A．so as to

B．in order not to

C．to not

D．so that not to