丁西林的创作大体可分两类，一类是直接揭露现实黑暗的社会剧，一类是隐喻暗示的象征剧。()

A. little
B. weak
C. strong
D. scarce

A. trails
B. trials
C. traits
D. traces

A. was
B. were
C. being
D. is

A. fend off
B. fend for
C. fend with
D. fend over