Mr Smith, looking ______, started to work out a        problem.
#18305
A
puzzled, puzzling
B
puzzling, puzzled
C
puzzled, puzzled
D
puzzling, puzzling
推荐题目
Studies show that Americans chat on their phones for more than five hours a month, _____ Europeans.
#18940
A
as much as twice
B
twice as much as
C
as much twice as
D
as twice much as
Keeping your body                              your mental health.
#19112
A
is benefit with
B
was beneficial to
C
have beneficial to
D
is beneficial to