21. I’m sure the beauty of _____ nature there will make___ excellent impression upon you.
A. the; an B. /; the C. the; / D. /; an
22. —Why didn’t you come to Simon’s party last night?
— I want to, but my mom simply _____ not let me out so late at night.
A. could B. might C. would D. should
23. －I left my handbag on the train, but luckily someone gave it to a railway official.
－How unbelievable to get it back! I mean, someone ______ it.
A. will have stolen B. might have stolen
C. should have stolen D. must have stolen
