Emails are efficient and convenient, but the best way to __________ a message is still to talk it out in person.
35.Fortunately we had a compass, without________we would have got lost.
34.Terrible as the storm was, umbrellas tightly__________in our hands , we continued our way.
33.— Is it all right if I come at about 8.30 ? — No, I ________ the football match then.
32.He was very busy, and________he didn’t go to the party that night.
31.America was_________was first called “India” by Columbus.