35.Information technology is taught in most schools, ____ we have entered the information society.
A.so B.while C.and D.for
34.It was playing computer games that cost the boy plenty of time he ____ doing his lessons.
A.might have spent B.ought to have spent
C.must have spent D.could have spent
33.____ you may be right, I can’t altogether agree.
A.While B.As C.If D.Since