The experiment involves _____ on some mice.

The experiment __________，the students went on to take notes in the experiment report

Scarcely ______ now without some sort of incident involving the old lady living at the end

The new product is on ____ before it is put on the market.A) testB) trialC) experiment

Dr. Wrangham conducted the experiment on rats which did not rely on cooking because______.

Cosmetic surgery involves ____ reshaping the body features.A、inB、atC、on

He talked about the ______ experience they had on the trip.A、amusingB、amazingC、amusedD、m