---The students of Class 7 are going to the seaside this weekend.
---Remember _____ them not to keep _______ alone in the sea. It’s dangerous.
| A．telling; swimming | B．telling; to swim |
| C．to tell; to swim | D．to tell; swimming |
Maria’s teacher wanted to know______ .
| A．how long she spends on her homework |
| B．when the speech will begin |
| C．why didn’t Mike come to the meeting |
| D．what she was doing these days |
— Hi, Jack. What’s that on the desk?
— Oh, it’s the new backpack my mom gave me for my birthday.
| A．when | B．what |
| C．which | D．where |
— ______do millions of online users visit the home page of the government for?
— To read the news and search for the information they need.
| A．When | B．Where |
| C．Why | D．What |
With the help of the smart phones, you ____ video chat with your friends on the phone.
| A．can | B．must |
| C．need | D．should |
— Sam, you don’t work hard at geography.
— My dad says that the world is changing every day, I decide to wait until it stops.
| A．because | B．while |
| C．if | D．so |