She went to the USA and _______ ever since.
| A．hasn't been heard of |
| B．was not heard of |
| C．hadn't been heard of |
| D．isn't heard of |
The company was named Gates Hall ______ a man named James Gates.
| A．in memory of | B．in search of |
| C．with the help of | D．in need of |
— Has Mary finished writing her article?
— No, and it _____ before class was over.
| A．should be finished | B．should finish |
| C．ought to have been finished | D．should have finished |
—Your mother becomes more and more forgetful.
—Yes. She searched for her cellphone for a whole day last Sunday but it ______ in her coat pocket the next day.
| A．turned out | B．turned on | C．turned over | D．turned up |
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
The letter he had been looking forward ____________ this morning.
| A．to arriving | B．to received | C．to arrived | D．to receiving |