Dictionary is ______ useful tool.A an B a C / DDictionary is ______ useful tool.A anB aC /D the

Dictionary is ______ useful tool.A an B a C / DDictionary is ______ useful tool.A anB aC /D the
Dictionary is ______ useful tool.A an B a C / D
Dictionary is ______ useful tool.
A an
B a
C /
D the

Dictionary is ______ useful tool.A an B a C / DDictionary is ______ useful tool.A anB aC /D the
B
本题考查冠词,尽管useful的【u】为元音字母,但读音[ˈjusfə ]l以辅音开始,故用【a】,中学里需引起注意的还有,a university,a European country,an hour,an honest boy

选A.在元音前面的冠词，结合语境

选择B。

选择A