There are ________ students waiting in the hall, ________?
| A．hundreds of; aren’t they | B．four hundred; aren’t they |
| C．four hundreds; aren’t there | D．hundreds of; aren’t there |
—What are you doing for your vacation?
—________________________.
| A．I’m going hiking. |
| B．I went to the beach. |
| C．I often go to the mountain. |
| D．I like going bike riding. |
—I’m tired and stressed out.
—You should ___________.
| A．study hard | B．go to the dentist |
| C．listen to light music | D．stay out late |
—_________is very interesting to swim in the river in summer,but it’s dangerous.
| A．This | B．That | C．It | D．He |
Vegetables are good our health, so we should eat them every day.
| A．at | B．for | C．in | D．with |
— do you go to the movies?
—Hardly ever.
| A．How long | B．How often |
| C．How many times | D．How soon |