Who can help me carry the heavy box—I think David is _______ to do it. But the door is ______for him to go through.

This is my little sister. _______ name is Jenny, we all like_______.

From April 18,2007，the elevated trains can travel________a speed of 250 kilometers per hour.[ ]

Let those in need _______ that we will go all out tohelp them

They are discussing in the next room_______will go to the conference on behalf of the manager.