It is written clearly in the requirements that all passengers check onto board thirty minutes before the plane takes off.
A．may B．can C．will D．shall
On snowy days, you have to drive very to avoid traffic accidents.
A. cautiously B. neatly C. smoothly D. properly
—Jane, have you finished your paper?
—No, I my sister with her homework all the morning.
A. help B. have been helping C. helped D. was helping
The rich only themselves in making money and had no eye for the needs and welfare of their workers.
A. devoted B. occupied C. enjoyed D. concerned
I wonder why Ann didn’t get the job. She is the right person for it.
A. to be offered B. to offer C. offering D. offered
I think you should complain— , of course, you are happy with the way things are.
A. if B. unless C. as D. because
