This course is______ must for students&-考呗网

单选题 This course is______ must for students who want to work in the film industry as ______editor.

A．不填; a
B． a; an
C．不填; the
D． a; the

【答案】B。解析：一般说来，在辅音或半元音开头的词前用a。而在元音开头的词前用an。因此must前面用a，而editor前面应该用an；故答案选B。注意：有些以元音字母开头的单词，由于第一个音不是元音而是辅音．其前仍用a而不用an。

1 To order tickets for 2008 Olympic Games, just call 952008. It______be simpler.

A． must
B． could
C． mustn't
D． couldn't

2 As we know, tomatoes can be cooked, juiced, eaten whole, sliced or

A． whatever
B． whenever
C． however
D． Wherever

3 Take your time-it's just______short distance from here torestaurant.

A．不填; the
B． a; the
C． the; a
D．不填,; a