After the quake, the whole city lay in ____ ruins. However, with all the efforts, ________ new Tangshan was born.
When he was doing the software development project, he ___________ many problems that he had to solve on his own.
____________ scientists will be invited to take part in this space flight.
The old teacher lay wide awake on his bed, ___________ all the problems he had to deal with the next day.
I am one of the students who _________ English well in my class but he is the only one of us __________ maths well.
—I had been working till 4 a. m. to prepare a report for my boss.—____________you look very tired.