Выберите правильный вариант

1) We were expecting him in Lviv. He .... to join us on our trip.
a) was
b) is
c) might
d) should
2) The teacher told that she .... continue the work as she had begun.
a) can
b) might
c) should have
d) might have
3) It's going to be a long trip. We .... take something to eat on the train.
a) may have
b) shouldn't
c) must have
d)should
4) We didn't want to start the discussion of the book without him. He .... to say a few words about the author.
a) was
b) is
c) would
d) must
5) They .... arguing for two hours.
a) can't be
b) can't have been
c) may
d) ought
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