All draughts must be______from the room.A．ejectedB．expelledC．excludedD．exiled

The police were given an order that the stolen documents must be recovered at all_________

Our tradition ______ be different _____ yours.A、can;withB、must;withC、need;asD、may;from

All of the following pairs of sounds except ______ are distinguished from each other by th

We must take precautious measures to prevent the river______.A．to be pollutedB．from pollut

All children in the UK must, by law, receive a full-time education from the age of______to

It can be inferred from the passage that______.A．all the European countries fall behind th