Not only the kids but also the teacher ________. We are worried because time is running out.
| A．has lost | B．has gone missing | C．have lost their way | D．have disappeared |
Linda a cough for a week. She has to rest at home.
| A．had | B．will have | C．is having | D．has had |
The students spent two hours their new project.
| A．discuss | B．discussed | C．discussing | D．discusses |
We a lot of places of interest since Monday.
| A．will visit | B．visited | C．have visited | D．are visiting |
Hurry up! Our class meeting will begin two minutes.
| A．in | B．for | C．at | D．on |
The plane didn’t arrive at 4:30 pm, the snow was too heavy.
| A．so | B．because | C．however | D．but |