21.Mary said nervously that it was _______ honour to have got _______ first prize in the composition contest.
A. an, the `B./; / C. an; a D.the; the
22. At the bus stop ______ a solider and two young people on their way to the village.
A. were B. was C. is D. sits
23. --- Who knocked at the door?
--- I’ve no idea. I just pretended nobody was at home, so I didn’t ask who ______ was.
A. he B. that C. she D. it