__________ Tom __________ Sam may go with you because one of them must stay at home.A. Both; and B. Either; or C. Not only; but also
English is not easy, but I never __________.
Your help made __________ for me to work out this problem.
I don’t think _______ Maths is easy.
Thanks for _________ the new chairperson.
He couldn’t hide his __________ at my success and said bad words about it.