1 . We visited the __________（宫殿）there last night and they were wonderful.

2 . I _______(提到) that to her, but she never listened to it.

3 . Listen! The b________ is ringing (响). Let’s go into the classroom!

4 . Charles enjoys ________ photos very much so he always goes out with his camera.

A．take

B．taking

C．to take

D．to taking

5 . What ____________ (颜色) is the pen?

6 . “x与y的差”用代数式可以表示为_______

7 . 你学校每学期都有郊游吗？
Do you have a school trip ________ ________?

8 . 碰到许久未见的同学，你可以这样说：
____________________________.

9 . I want to be a ________ (科学家) in the future.

10 . The human brain ________（weigh）about 1.4 kilograms, but it can hold much more information than most computers.