A total of 35 Chinese universities rank among the world’s 500 best in a ranking _____ by China's Shanghai Jiao Tong University on Monday.
Young people seem to have no time to spend with other people around them ______ giving so much attention to their own world.
One of the requirements for the experiment is that the material _____ to its burning temperature.
---- Occasions are rare _____ I can spend a day with my daughter. ---- You should spare some time to accompany her.
I will never understand how it ______ that you failed in the examination for you are such a good student.
----Do you have any idea why Mark is leaving? ---- No. In fact, everyone is ________about it.