The changes of the plants and animals in an area ________ from differences in climate and the nature of the country.
“Would you be ______ help me?” “I'd very much like to.”
We’ve come to help. Which room do you want ______?
Who would you like to have ______ you?
Time ______, we'll go shopping in that big department store.
— Shall I close the window for you? — No. I am used to ______ with the window ______.