She has much difficulty     science, so the often asks me for help.
#55364
A
understand
B
understood
C
understands
D
understanding
推荐题目
The book must ______ Tom.
#57643
A
belong
B
belongs to
C
belong to
D
be
Millie often _______ a very special costume at the party.
#59141
A
puts on.
B
dresses up
C
wears
D
dresses