When I came into the classroom this morning, it ______ me that I had left my book in my dormitory.
| A．occurred | B．was occurred | C．occurred to | D．was occurred to |
Don’t ______ life’s small joys while searching for the big ones.
| A．contradict | B．overlook | C．obtain | D．confirm |
Delta, the American airline, is sometimes jokingly explained “Don’t expect your luggage to arrive” because it ______ be very slow.
| A．should | B．must | C．can | D．will |
Life is more than merely trying to achieve thestandards of society but trying to be a good person ______ one’s own standards.
| A．at | B．in | C．on | D．by |
______ herself in looking after the newly-born twins, she had to sacrifice her career to stay with her kids.
| A．Occupied | B．Being occupied |
| C．Having been occupied | D．Occupying |
--- What is your strongest memory of the bombing attack?
--- If I ______ rightly, we were about to approach the finish line when a big bang struck my ears.
| A．will remember | B．had remembered | C．remember | D．remembered |