—What a pity! You should have urged him to hand in his English homework.—I _______. But he wouldn’t listen to me.
The United States and England are both ____________countries.
We have made ________clear that we are strongly against smoking in the office.
The beauty of the city ________its magnificent buildings.
English,as well as Chinese and math ________of great importance now.
Without ________electricity,how can we search for information on ________Internet?