21. I don’t think he is _____ failure. At least he has gained _____experience for future success.
A. / ;/ B. a ; the C. a ;/ D. /; the
22.______ of danger in the street last night, she had to go home, with a friend ______ her.
A. Warned; followed
B. Warning; following
C.Having warned; following
D. Having been warned; following
23. ___ everyone else wouldn’t go to the dark cave, he went into it without hesitation.
A. As long as B. While C. Where D. In spite of
