Sally wants to become a singer when she __ up.
A．grows
B．grew
C．will grow

According to the professor, why is chemistry sometimes called the central science？
A．Chemistry courses are the most difficult．
B．Chemical processes occur all around us．
C．Chemistry students have high status．
D．Chemists study how to control diseases．

The word which in the passage refers to
A．tale
B．Scandinavia
C．manuscripts
D．Old English

听力原文：M: Ann, do you and your husband plan to have many children？
W: Only two. It's expensive to have a big family now.
What do we know about the woman？
A．She has already had two children.
B．She does not want to have any children.
C．She does not want to have a big family.

What physical features are characteristic of birds that eat insects？ Click on two answers．
A．A thick, cone-shaped bill
B．A slender,tweezer-like bill
C．Strong jaw muscles
D．A long, sticky tongue

All the information can __ in this small computer.
A．store
B．be storing
C．be stored