--- Listen! David is talking happily with his mother in the next room.
--- It ______ be his mother. She has gone to Yunnan to be a volunteer doctor.
| A．should | B．must | C．can’t | D．mustn’t |
－She asked me __________ go to the park.
| A．how she can | B．how she could | C．how can she | D．how could she |
－The Greens are not here. If you need help, you should __________.
－Sure.
| A．call him up | B．call up him | C．call them up | D．call up them |
－My little brother was really_______ at the _______ news.
| A．surprised; surprised | B．surprised ; surprising |
| C．surprising; surprised | D．surprising ; surprising |
－The flight to Beijing will _________ in one hour.
| A．take away | B．take part | C．take off | D．take with |
－__________ will you finish your homework, Ben?
－ In two hours.
| A．How far | B．How soon | C．How long | D．How often |