________ is known to everybody, Taiwan is a part of China. We must unify it.
As far as I know, Mary is one of the students who ______ the English examination.
---Sir, do you have any double room ______ now? ---Just a moment, I will find out.
---Did you reach the top of the mountain? ---Yes.Even I myself didn’t believe I could ______ it.
--These days I can only sleep for four or five hours at night as I’m too busy with my research work. --If you keep going on like that, you are sure to ______ sooner or later.
—Where is Lucy? —I can’t say where she is, but she have gone to meet her classmates, forthey want to go to Sichuan to work as volunteers.