It takes me fifteen minutes from my home to the bus station.
| A．walk | B．wailing | C．walks | D．to walk |
My son often eats junk food. I really about his health.
| A．talk | B．know | C．learn | D．worry |
( ) I often ride a _______ to work. I think it is a kind of exercise.
| A．train | B．taxi | C．bicycle | D．Subway |
( ) I took ______ quick shower at 6:30 am. Then I had ______ breakfast at 7 am.
| A．a; a | B．a; / | C．an; the | D．/; a |
( ) —How can I go to your school?
—______.
| A．You can walk there with me |
| B．You can take the red sweater |
| C．You can afford it |
| D．You can buy it for fifty yuan each |