ⅰ.完形填空 kindness is not always a straight line. i was traveling in a city of central america with a friend, and we were __1__ a post office. we were standing on a street corner and did not know what the spanish word for “post office” was. some __2__ guy could see we were __3__ and came up to us. we tried to __4__ what we were looking for, and he said, “oh, yes,