西亚地区自古就是东西交通要道，它联系的三大洲是[ ]
A．亚洲、欧洲、非洲
B．亚洲、非洲、大洋州
C．北美洲、南美洲、非洲
D．欧洲、亚洲、北美洲
答案：A
—It’s said that he stays up studying every night.
—______ he’s excellent in English!
A．No way.
B．No wonder.
C．No doubt.
D．No good.
Though measures have now been taken to prevent further price hikes, many people remain _______ over the rising cost of food.
A．be concerning
B．concerns
C．concern
D．concerned
