We had to _________ the engine piece by piece for transport.
A. take up B. take out C. take off D. take apart
The little boy was in danger. The doctors and nurses are doing him.
A. what they can do help B. everything they can help
C. what they can to help D. all what to help
_______ the end of last term, we had learned 3,000 English words.
A. At B. By C. To D. On
Through the satellites, we can send and _______ messages.
A. pick up B. pick out C. take up D. take in
All is needed is a Supply of oil．
A．the thing B．that C．what D．which
