单选题If all the continents and mountains were bulldozed flat, the earth __ covered by water.
单选题Sales-promotion methods, to be effective, should be ___ with local preference.
单选题Geologists, __ some nongeologists, believe that knowledge of the concepts of geology can help to find petroleum.
单选题It seems oil _______ from this pipe for some time. We'll have to take machine apart to put it right.
单选题Anyone who refuses too often to listen to the other side of a question risks becoming __ minded.
单选题So frightened __ in darkness that she did not dare to move an inch.
单选题At he beginning of the Games in the host country __
单选题The passage implies that cellulose is a very porous substance because it contains ____
单选题According to the article, a document signed with a pencil __
单选题I raced to_______ Jill.
单选题It's no use__ me. I don't know more than you do.
单选题My grandma noticed that the girl __ a short-sleeved dress, so she gave the girl a new sweater.
单选题The largest ______ever to attend a soccer match was at the World Cup final on July 16, 1950
单选题For the creatures to become oil, it was necessary that they ______ between layers of rock for an enormous length of time.
单选题When you’ve finished reading a book, and the pages are filled with your notes in the ____ , you know you read actively.
单选题Purchasing the new production line will be a __ deal for the corporation.
单选题People try to avoid public transportation delays by using their cars, and this ______ creates further problems.
单选题__ the radio, he began to go over his lessons.
单选题Which of the following conclusions about the federal district is supported by the passage?
单选题The waiters will refill your coffee cup several times for no extra__(17)