_________ can you expect success.
| A．By working hard | B．Working hard |
| C．Only with hard work | D．Through hard work |
The car burns more fuel, but _______ all things into consideration, it is still a good car.
| A．taken | B．having taken | C．taking | D．to take |
The police are offering ______ reward of $50,000 for information leading to the arrest of _____ murderer.
| A．the; the | B．a; a | C．the; a | D．a; the |
When you learn a foreign language, ________you must forget your own one.
| A．above all | B．after all | C．in all | D．at all |
Mark ______ a basketball game in the stadium that _______ 5000 people.
| A．holds; is holding | B．is holding; holds |
| C．holds; holds | D．is holding; is holding |
The conference has been held to discuss the effects of tourism ______ the wildlife in 
the area.
| A．in | B．on | C．at | D．with |