People all around the world have been doing as much as they can ________the people in Afghanistan.
#89768
A
help  
B
to help
C
helping  
D
helped
推荐题目
Once ____________ ,  a plan should be carried out.
#96615
A
make
B
making
C
made
D
to make
  ________ the city center, we saw a stone statue of about 10 meters in height.(2010·上海)
#88303
A
Approaching
B
Approached
C
To approach
D
To be approached
Paul doesn’t have to be made ____. He always works hard.
#97004
A
learn
B
to learn
C
learned
D
learning