David got a higher grade in the final exam, for, you see, he made______mistakes.
That warmhearted woman often helps ______ is in trouble.
---You ____ him more help, even though you were very busy. ---Well, now I regret not.
---The last one _______ pays the meal. ---Agreed!
Where to get the materials and how to get them ________ at the meeting.
Hurry up, _______ you will miss the early bus.