Then came a terrible thunder ________ the sudden lightning.
| A．followed | B．followed by |
| C．following | D．following by |
Some researchers believe that there is no doubt ____ a cure for AIDS will be found.
| A．whether | B．what | C．which | D．that |
My sister has been feeling ______ since she started her first job. She can’t sleep well.
| A．stressed | B．unpleasant | C．confident | D．sudden |
Not only ______ a city and a republic, but ______also to become the capital of one of the largest empires in history.
| A．was Rome; was it | B．was Rome; it was | C．Rome was; was it | D．Rome was; it was |
Two hundred people showed up for the wedding, about 50 more than we had ____planned.
| A．firstly | B．temporarily | C．actually | D．originally |
You were silly not ______ your car.
| A．to lock | B．to have locked | C．locking | D．having locked |