—Is _______ ready for the picnic?—No, _______ is wrong with my bike. I can’t go bike riding with you.

--______she?---She’s my sister.

Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice．

—Would you like tea or coffee? —_____________is ok. I’d like water.

What I need is nothing but an interesting book,_    __ that can kill the time tonight