----awful days we had these days!A What a B.What C.How D.How

选择B.
我们看的时候可以把“____awful days we had these days!”转换为“We had____awful days these day.”由此可以清晰地看出横线里不可能是how,又因为days已经是复数,所以what后不用再加a,所以选B：What