Why can’t you go with me to the National Museum—I ___________ an essay all the morning and haven’t finished yet.

He, an average citizen, always thinks of_____ he can do more for the people

46 The house _____ in 1808 still remainedthere

The ________ people in the traffic accident were given first aid at once.

In modern society, alternative energies __________ traditional ones are playing an important role in our daily lifeThat’s just because scientists have made great breakthroughs _________ the development of science and technology