Fruit and vegetables are good for us. We need them __________ healthy.
| A．keep | B．keeping | C．to keep | D．keeps |
----How about having a picnic next weekend?
---- It _____great.
| A．tastes | B．looks | C． sounds | D．smells |
Lucy is ill.She has a bad cold for several days.
| A．got | B．taken | C．caught | D．had |
Yougo and ask Tom.Heknow the answer.
| A．must;can | B．need;can | C．can;may | D．must;may |
—I put the bike here?
—No,you can’t.
| A．May | B．Must | C．Need | D．Shall |
—Who is knocking at the door?
—It be Miss Zhang.Because she has just gone to Japan.
| A．mustn’t | B．can’t | C．may not | D．needn’t |