D
badly 副词
bad one 缺少冠词a
a bad缺少名词one
所以选bad 糟糕的,做is的表语how long （ ）queue？a. did they have to b.they had to c.had they to d.they did have toAhave to do不得不，疑问句加助动词didimany of the artistes who( )did not come.a.ought to appearb.should appear c.had to appeard.ought to have appeared