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
What about _____ for a walk after dinner? 
#50582
A
go
B
goes
C
went
D
going
–I feel tired and sleepy. –Why not stop __________?
#50602
A
to relax
B
breaking
C
resting
D
to work