—How many ________ in the tree? —There are two.A. bird are thereB. birds is thereC. birds are there
His sister wanted to have him _____ the radio, but he had had it _____ already.
—Why not go camping this weekend? —_______.
Unluckily, John’s father __________murder when he was in his forties.
The explorer insisted ________ his advice was of ________.
Life on Mars will be better than ________on Earth ______ many ways.