Mrs Black, could you give me some advice on how to write an application letter–With pleasure. Remember that the letter should be written in the formal ______.

The subject isn’t very________well in the book[ ]

I am very worried about tomorrow’s chemistry test. I’ m afraid I can’t pass this time.— ! I’m sure you’ll make it.

It was ______ of you not to disturb us.

I tried to call you last night, but I couldn’t ______.