问题
These days our _____ concern is to provide people with enough information about food safety. [ ]
A: normal
B: constant
C: permanent
D: primary
B: constant
C: permanent
D: primary
正确答案是：
同类题型
I thought it was _____ to donate money to this fund. [ ]
It is recognized that the part ___ the UN plays in international relations is important.
When you rewrite the paragraph, I advise you to______ the last sentence as it is rather misleading.
____him not to do so, he wouldn’t have made such a serious mistake.