— Must I take a taxi? —No, you______. It is only a six minutes’ walk. A. don’t have to B. must C can’t D ought to
He was encouraged to start again _________ he had failed.
By this time next year we from the college.
_______, people injured in the earthquake are _______.
Some scientists think there are _______ 2,000 million flashes of lightning per year.
Whenever we are in ______ trouble, we should never lose______ heart.