—When will his party begin?
—I am not sure. It _ be at 8:00 p.m.
| A．must | B．may | C．have to | D．has to |
—Must I hand in the weather report this morning?
--No, you__.
A. mustn't B. needn't C. may not
The teacher will be backan hour.
A. in B. after C. on
Look! The bird __in the sky.
A. is flying B. flies C. fly
My birds can ___by one of my friends while I'm away.
A. be looking after
B. look after
C. be looked after.
Jack__China__two years.
A.has been in, for
B. has been in, since
C. has come to, for