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【单选题】
How does the professor remind students of the cruelness of animal experimentation?A.
He gives a detailed description of the cruelness of animal experimentation.
B.
He encourages students to imagine the pain that the animals suffer from in animal experimentation,
C.
He compares it with the hypothermia experiments done on Jews.
D.
He reminds the class of the fact that scientists define begging calls,
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皮皮学刷刷变学霸
举一反三
【单选题】I’m also having problems __________ at night because I keep coughing.
A.
sleeping
B.
to sleep
C.
sleeps
D.
slept
【单选题】I’m also having problems __________ at night because I keep coughing.
A.
sleeping
B.
to sleep
C.
sleps
D.
slep