________seems to be a strong competition inChina for senior high students to enter universities does exist in othercountries as well

So _____ that all the living things died out gradually .

I to my cousin’s birthday party last night, but I was not available.

The class ______ big. Now the class_______ practicingswimming.

So hard ______ in the past few months that he has made great progress in English. — I can see that; only a few mistakes ______ in the exam.