Cloning an animal is a complex ________ that can go fatally wrong at any stage.
A. process B. regulation C. step D. method
________ is as much an art as it is ________ science.
A. Cloning; a B. Clone; / C. To clone; the D. Cloning; the
My ________ of this weekend’s activity is going out with some good friends.
A. idea B. opinion C. mind D. thought
We are ________ in our views of what should be done.
A. identical B. similar C. exact D. moral
At times, worrying is a normal, ________ response to a difficult event or situation – a loved one being injured in an accident, for example.
A. effective B. individual
C. inevitable D. unfavorable
The house is finished at last. All their hard work has ________.
A. paid back B. paid up C. paid off D. paid for
