Playing on a frozen sports field sounds like a lot of fun. Isn't it rather risky,__________?
26. They got married 30 years ago and never ______ in the past years.
25. The student who was caught ______ in the exam has been removed from school.
24. ---Is there any flight to New York? --- I think there ______ be, for it is snowing so heavily.
23. We have no idea at all ______the economic crisis will end.
22. ---Can we meet at 3 o’clock tomorrow afternoon? --- That doesn’t suit me. I’m afraid I _____________.