His conclusion, ______ on careful research, was acceptable.
| A．to base | B．to be based | C．basing | D．based |
He ________ a long pole in the center of the field, and on the top of it I hung the lamp.
| A．put up | B．put out | C．put on | D．put up with |
His aunt’s letters ________ him of those beautiful days when they used to live together in his hometown.
| A．call up | B．call for | C．call on | D．call at |
Eating too much fat can ________ heart disease and high blood pressure.
| A．devote to | B．attend to | C．contribute to | D．turn to |
I’m putting on weight. The doctor has warned me to _________ sugar.
| A．keep up | B．keep back | C．keep off | D．keep away |
—Are you ready to leave?
—Almost. I'll be ready to go as soon as I________ putting the clean dishes away.
| A．get through | B．give up | C．go on | D．set about |