I would greatly _____ it if you could send me the letter as soon as possible.

The girl being a child of _______ intelligence, expecting too much of her would make her nervous.

Rather than ________ on a crowded bus，he always prefers ________ a bicycle.

—Your sitting room looks so clean and tidy.—Well, thanks to the baby­sitter. She is a real ________.

—Which module is the most difficult in this book?— I think _____ module.