She did what she could _______ us. Though 3,000 dollars is a lot of money for her.
There is _______ “u” and _______ “f” in the word “unfamiliar”.
---Would you please fetch some water for me? I am too tired. ---________.
---Would you mind my sitting here? -- _____. Sit down, please.
Could you please ____me some suggestions for the plan?
Susan thought ____not easy to answer all these questions.