—Did the boys break the window ?—No. They did it when they were playing football.
—What do you think of the standard of the new curriculum (课程)?—It is certain to have a great __________ upon the future of both teachers and students.
Old people need special care in winter, as they are very __________ to sudden change of the weather.
Now more and more people have come to know the role that trees __________ in our natural environment.
My favorite cartoon character is Mickey Mouse. It's so __________ that we often feel __________.
A school should create all atmosphere __________ kids can develop themselves all round.