— Food problem is becoming a big one in China! —I think the food ________ before going to shops or supermarkets. 

—Did the book provide the information you need? —Yes. But ________ it, I had to read the whole book.

— Were you allowed to go to your cousin’s birthday party?—No, I        .

We know that about seventy percent _____ the earth _____ covered by water.

Many accidents_____ by careless drivers last year.