问题：
The elderly should _________ politely. Also, they must ___________ well.
A.speak
B. take care of
C.be spoken
D. be taken care
E.be spoken to
F. be looked after
G.be spoken to
H. be taken care of
The elderly should _________ politely. Also, they must ___________ well.
A.speak
B. take care of
C.be spoken
D. be taken care
E.be spoken to
F. be looked after
G.be spoken to
H. be taken care of
A.speak
B. take care of
C.be spoken
D. be taken care
E.be spoken to
F. be looked after
G.be spoken to
H. be taken care of
参考答案：