According to Allen, why did the people do better with pets around when l~cing stressful tasks?
A．They have lower blood pressure.
B．They become more patient.
C．They are less nervous.
D．They are in higher spirits.

Where was the writer going?A. Johore Baru, B. The Cause...

单项选择题Where was the writer going?
A. Johore Baru,
B. The Causeway.
C. Butterworth,
D. Singapore.

49 A only B.then C.thus D stillA.thenB.thus

单项选择题49 A only B.then C.thus D still

54 A. learn B make C.favor D.tryA.favorB.try

单项选择题54 A. learn B make C.favor D.try