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
Jerry ________ with a stranger when I met him on the way to work yesterday.
#52037
A
was arguing
B
would argue
C
argued
D
is arguing
I forgot to take the key to the bike with me again.
#53252
A
didn’t keep
B
left
C
didn’t remember
D
returned
At the party, Lucy         like a Mickey Mouse to make us        .
#55076
A
dressed up, laugh
B
dressed up, to laugh
C
dressed on, laugh
D
dressed on, to laugh