I had a hard time learning math last year. 
#39953
A
was hard-working
B
worked hard
C
had trouble
D
didn’t like
推荐题目
To keep healthy, many people       every day.
#42829
A
take a shower
B
take pride
C
take a look
D
take exercise
Professor White has written some short stories, but he is _____ for his plays.
#37294
A
more-known
B
the most- known
C
better- known
D
the best- known