—What’s the matter with you?
—I caught_____ and had to stay in____ bed.
| A．a; / | B．a; the | C．a; a | D．the; the |
Can you find the answer _________ the question?
| A．in | B．on | C．at | D．to |
Do you know the secret _________ good health?
| A．in | B．on | C．at | D．to |
My grandfather takes exercises ________ two hours every day.
| A．with | B．in | C．as | D．for |
________ you have a cold?
| A．Do | B．Are | C．Can | D．Should |