The mobile phone has influenced our life a lot since it_____.
A. invents B. is invented C. was invented
Simon doesn't know what _______ today.
| A．wears | B．to wear |
| C．wearing | D．to wearing |
There are three _______doctors and five ______nurses in the room.
| A．man, woman | B．men, women |
| C．man ,women | D．men ,woman |
-- ______ do you exercise? --Three times a week.
| A．When | B．How often |
| C．How long | D．How much |
Millie needs _______healthy.
| A．to look | B．keep |
| C．to keep | D．look |
There is ________ “m” and ________ “u” in the word “much”.
| A．a; a | B．an; an |
| C．a; an | D．an; a |