It is the first time that I _____ abroad. A. have been B. was B. will have been D. am
We travelled together as far as Chicago, ______ we parted.
Great changes ______ in the city, and a lot of factories ______.
According to the record reports, one of the rare animals, ______ crocodile, is in ______ danger of dying out.
______, ______ many boys, Jack like playing football.
This is the ____ piano on which the composer created some of his greatest works.