Question

The museum is quite far.It will take you half ________ hour

Answer 1

答案A

剖析：按照英语冠词的习惯用法,在某些词组中要用不定冠词,如a moment ago,a lot of,a few,go for a walk,have a good time；have a look,in a hurry,catch a cold等；有些词组不带冠词,如at home,at night,in time,in bed,by bus,by bike,by train,go to school．