Those kinds of Chinese medicines ________ cool and dry following the instructions．

A．must be kept

B．should place

C．will be eaten

D．should carry

Every year large numbers of businessmen ________ to Shiyan to buy heavy trucks．

A．comes

B．have come

C．came

D．come

A mobile phone is never allowed into the classroom during the school time, ________?

A．hasn’t it

B．has it

C．is it

D．isn’t it

There will be ________ students in our class in two weeks, so we need a bigger classroom．

A．few

B．more

C．many

D．fewer

This is ________ story that I have told you before．

A．an

B．a

C．the

D．不填

I didn’t understand ________, so I raised my hand to ask．

A．what my teacher says

B．what does my teacher say

C．what my teacher said

D．what did my teacher say

He ________ a piece of waste paper, and put it into the rubbish bag．

A．picked up

B．threw away

C．looked for

D．handed in

The menu has so many good things!I can’t decide ________．

A．what to eat

B．how to eat

C．where to eat

We ________ to close the windows before we left the lab．

A．tell

B．told

C．are told

D．were told

Do you know the man ________ is sitting behind Nancy?

A．what

B．which

C．who

D．whom