However weak we are, we can still do something against the powerful nature as long as we are ______ prepared.

---- Have you finished your experiment report, Jane?----- Oh, my God. I’ve _______ forgotten all about that.

–I _______ think it’s a northern university. So many restaurants serve northern food.--That’s because the students here are _______ from the north. 

—What time do we have to be at the gate of the museum?  —______ the visitors begin to check in.

—Since you like the fur coat so much， why not buy it?—Well， I can’t afford ______ coat.