Maria has _____ trouble _____ math, so she often asks her math teacher for help.
#49150
A
much; understanding
B
no; with
C
many; understanding
D
not; to understand
推荐题目
The thief was noticed _____the office building by the back door on the screen.
#51161
A
enter
B
enter into
C
to enter
D
to enter into
Tony is busy _______ his homework.
#50470
A
doing
B
do
C
to do
D
does
  This book is a bit difficult. ________ read something easier?
#48918
A
Why not to
B
Why don’t
C
Why not
D
Why not you