She looks very busy . I want to help her , but I don't know ___________ .
#50250
A
what to do
B
what to do it
C
how to do
D
why to do
推荐题目
— He is working hard now.— He tries ___ English. So he practices ___ English every day.
#49653
A
to learn, to speak
B
learning, speak
C
to learn, speaking
D
learning, to speak
He used to _______in the sun ,but now he is used to ______at night.
#48575
A
read;read
B
reading;read
C
read; reading
D
reading; reading
–Do you have some trouble ____ the problem? Do you need some help?--No, thank you. I can make it myself.
#50320
A
solve
B
solving
C
to solve
D
solved