1. This ________(照相机) is now on sale for 19 dollars only
2. Are you going to America by boat or by ________(飞机)?
3. This tree is said to be one ________(千) years old
4.
The boy often asks his teachers some ________(奇怪的) ques
tions.
5. How long does it take to go to the airport by ________(出租车)?
