问题

Be careful, _______ you will make mistakes in your exams.–I know that, Mrs. White. One can never be too careful.
A:and
B:or
C:nor
D:but;
B:or
C:nor
D:but;
正确答案是:
同类题型
The hospital has been set up in ______was a wasteland many years ago.
Are you going to take part in the speech contest—__________It’s too good an opportunity to miss
Everyone may feel time______very quickly when they do something interesting.
He was generous with his time, ________ I was grateful.
His face looks familiar(熟悉的) to me. I remember _____him ______ in my hometown.