The doctor ________ the woman ,but he couldn’t find out what was wrong with her..

.—Must I turn off the gas after cooking ? –Of course . You can never be ___ careful with that.

Zhou Ming likes reading English magazines. —_______. It’s good for English learning.

The work is too difficult for Mr Zhu to finish in a week. He needs ___________ days.

The hospital nearby has just got a , ______ you’d call it, er……a scanner.