Sugar is sold by _______ pound, petrol by _______ gallon.
| A．a; a | B．a; the |
| C．the; a | D．the; the |
If you have any doubts about your health, you’d better______ your doctor at once.
| A．convince | B．consult |
| C．avoid | D．affect |
It is a truly delightful place, ________ looks the same as it must have done 100 years ago with its winding streets and pretty cottages..
| A．as | B．where |
| C．that | D．which |
It is important to remember that success ________ a sum of small efforts made each day and often ________ years of achieve.
| A．is; takes | B．are; takes |
| C．are; take | D．is; take |
Video games can be a poor influence if ________ in the wrong hands.
| A．to leave | B．leaving |
| C．leave | D．left |
You have to know ________ you're going if you are to plan the best way of getting there.
| A．what | B．that |
| C．where | D．who |