下列句中划线字解释有误的一项（ ）

Please tell me the problems ________ at yesterday’smeeting quickly The manager is calling me!

erage price of commercial houses in our city hasreduced by _____ 30 percent ,so we can buy one at _____ low price

These wild flowers are so special that I would do ____I can to save them.

I’ve just heard that the speech to be given by Ma Yun, the Alibaba CEO, has been cancelled.—Oh, no! ________.