1. ________ we gave him something to eat, he would save it up for his little sister.
A. Whatever B. However
C。 Whenever D。 Whichever
2。 Hard-working though he was, ________ there was never enough money to pay the bills。
A。 / B。 and
C. but D. therefore
3. Much hard ________ he tried，he flailed to catch up with the first runner.
A. although B. as
C。 while D。 when
4. I got in touch with Charles ________ I received his letter.
A. when immediately B. soon
C. immediately D. suddenly
5。 We were just ________ calling you up ________ you came in。
A。 about; when B。 on the point of; while
C. on the point of; when D. on the point of; as
6. Most of his great novels and plays were not published or known to the public ________ his tragic (悲剧) death in 1786.
A. even before B. ever since
C。 until after D。 until before