特急`英语高手帮助呐```1.sheilia couldn't come to the party ,____was a

特急`英语高手帮助呐```
1.sheilia couldn't come to the party ,____was a pity
a.what b.which c.that d.it
2.all the passengers and suitcases ___were still on the broken -down old bus had to be transferred to another long -distance bus.
a.they b.who c.that d.which
3.this is an unpleasant subject __we might argue for a long while.
a.in which b.with them c.about which d.with it
4.dorothy was always speaking highly of her role in the play,___,of course,made the othersa unhappy.
a.who b.which c.this d.what