The computer system suddenly_____ while he was searching for information on the Internet.
I don’t like math at all. It’s too difficult for me .—I’m not good at math, either . I always feel _____before I take a math test.
In China, those who want to enter universities have to _______ the entrance exams in June. [ ]
I ______ much progress in my English studysince last term.
Harry, we want to know your view about the reform being carried out in our school.—OKI ________ to that