1. Jumping out of ________ airplane at ten thousand feet is quite _______ exciting experience.
A. /, the B. /, an C. an, an D. the, the
2. He is really a friend of mine and he would ________ his last penny with me.
A. cost B. lend C. support D. share
3. If it was not an accident, he must have done it ___________.
A. on purpose B. for purpose C. in time D. with care