The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
__________ has been announced, we shall have our final exam next month.
It was in time of danger ________ he made the final decision ________ they should send more doctors there.
It is a great for any man to be able to talk or hear, neither ignorantly nor ridiculously, upon any subject.
They suggested that the professor _____ just now _____ chairman of the meeting.
Everyone in the village hoped that he would ______ after a few days’ treatment.