【单选题】
6.I have taught to be very ______ about my manners at parties.
【单选题】
10.This 1998 incident is timely ______ of the threat that a market economy may face.
【单选题】
14.If you move to the left, you _______able to see the church.
【单选题】
3.This little girl began to show the sign of ______ her brother in spoken English.
【单选题】
8. As a part of______ process, gradual loss of hearing ability can be difficult to deal with.
【单选题】
5.Sometimes animals can _______ the coming disaster, so they can protect themselves.
【单选题】
13.Oil floats if you ______it on water.
【单选题】
22. When a fire ______ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
【单选题】
23. Realizing that he hadnt enough money and ______ to borrow from his father, he decided to sell his watch.
【单选题】
20.The girl’s voice was so low that we could ________ hear her.