The company _______ several major changes in the last decade.
A. attributed
B. distributed
C. underwent
D. undertook
He’s _______ to fail the exam if he doesn’t do any revision.
A. linked
B. attached
C. bound
D. fastened
Two points in this report are especially ________ of notice.
A. worth
B. worthy
C. worthwhile
D. worthless
The situation today is obviously quite different from ________ it was 50 years ago.
A. what
B. when
C. which
D. such