—What a surprise! Harry used to get nervous because he couldn’t organize his ideas well _________ to express _________ clearly.

—Great, havent’t you heard, “Where there is a will, there is a way.” Let’s give him a big hand.

A．enough; him

B．enough; himself

C．too; him

D．too; himself

稀释后的微沫剂溶液存放时间不宜超过（）天。

A.3

B.7

C.lO

D.l5