—Must I come to see you again?
—No,you .
A.mustn’t B、needn’t C、can’t
Everybody should remember it is not _________ to swim in the river alone．
| A．healthy | B．safe | C．possible | D．comfortable |
Some students are so ______ that they often make mistakes in their homework.
| A．careful | B．serious | C．careless | D．successful |
It’s about 5 away from here to the mountain.
| A．hundred meters | B．hundreds meter |
| C．hundreds meters | D．hundred meter |
—Which do you like , summer or winter?
—I prefer summer.
| A．good | B．well | C．better | D．best |
— Where is Lin Tao? — He _____ to the teachers’ office. He will be back soon.
| A．go | B．has gone | C．has been | D．went |