问题

He found it increasingly difficult to read, ______ his eyesight was beginning to fail[ ]
A: and
B: for
C: but
D: or
B: for
C: but
D: or
正确答案是:
同类题型
Work hard or you will __________by someone else. [ ]
The blueprint is to the builder _____the outline is to the writer.
I__to a party, but I’ve got nothing to wear— Why don’t you have a dress made for the party?
Each of the students,working hard at his other lessons,______to go to university.—So do I.
It is often ____________that human beings are naturally equipped to speak[ ]