— Is Tom at school today?
— No, he is at home ______ he has got a bad cold.
| A．so | B．or | C．because | D．if |
Where is he going ______ vacation?
| A．at | B．for | C．in | D．to |
_____ very important to have good eating habits.
| A．That’s | B．It’s | C．He’s | D．This is |
Are they getting ready _____ the exam?
| A．for | B．to | C．at | D．in |
Listen! Someone ______ in the next room.
| A．sing | B．singing | C．is singing | D．are singing |
Please connect the keyboard the computer.
| A．in | B．at | C．to | D．on |