Only through constant practice can the ability of using a foreign language be _______.
A. earned B. acquired C. gained D. achieved
She ________ on her work so much that she didn’t notice that a crowd of people had _______around her.
A. focused; focused B. fixed; gathered
C. concentrated; concentrated D. carried; collected
The doctor, ________ by several nurses, successfully performed the difficult operation on the patient.
A. aided B. assisted C. helped D. guided
People tend to live more happily and longer if they are ________ about life.
A. pessimistic B. enthusiastic C. optimistic D. terrific
---How is your mother doing? Is she ________?
--Oh, thank you. As a matter of fact, she _______.
A. looking up; has recovered B. picking up; is already back on her feet
C. picking out; is well again D. taking up; has already been back on her feet
________ the necessary equipment, the seriously wounded man had to be sent to another hospital for the operation.
A. lacking B. Lacking of C. For lack of D. Lacking in
