单选题—What's in the box?—I'm not sure. It _____be a book.
单选题（）
单选题Conversation becomes weaker in society that spends so much time listening and being talked to _______ it has all but lost the will and the skill to speak for itself.
单选题Of all my subjects,i think pasychology is （）.i of ten get a hing mark in the examination.
单选题Since 1949, our country _________ remarkable progress in reducing poverty.
单选题American linguist Noah Webster was among the first to the growing difference between American and British usages of English.
单选题Look! There are too many people on the bus. Let's _____the next one.
单选题W: You’ve already finished your apartment?M: I found some used furniture that was dirt cheap.Q: what do we learn from the conversation?
单选题The diver had to brake hard to avoid（）the animal.
单选题We're making good progress,（）we've sill got a long way to go.
单选题I haven’t met him ________ the last committee meeting.
单选题W: Excuse me, do you have any apartments available for under 500 dollars a month? I need to move in next week when my new job starts.M: The only vacant one I have is 600 dollars, have you inquired at the apartment complex down the street?Q: What does the man suggest the woman do?
单选题There is a lot of evidence _______ stress is partly responsible for the disease.
单选题She has managed to obtain a temporary work __________ in Britain.
单选题The teacher doesn't allow his students _______ on the exam.
单选题_____you stay in China, _____you will learn about Chinese culture.
单选题 If you find this item too difficult to _______, it is advisable to leave as it is and move on to the next one.
单选题She found it difficult to concentrate while ________ her new novel.
单选题Take your time and think the matter over before you ______ a conclusion.
单选题You and I could hardly understand, ________?