John is ______ honest boy. He has______ useful book.
| A．an; an | B．a; a | C．a; an | D．an; a |
He is tall, _____ his son is short.
A. or B. while C. and
She has _____ this car for nearly ten years.
A. buy B. bought C. had
________the workers were quite tired, _______ they still went on working.
A. Because; / B. Although; but C. Although; /
_____ of the teachers are women in our school.
A. Second thirds B. Two threes C. Two thirds
--They have been to Australia.
--_____.
A. So do I B. So have I C. So did I