—Why didn’t you go to play football with us yesterday afternoon? —I _____my mother with the housework then.
—May I borrow some English newspapers? —_____
—_____ do you usually come to school? —By bike.
I don’t like physics ______ it’s too difficult for me.
—_____ do you _____ the book? —It’s very interesting.
—How long can I keep the books? —_____