单项选择题

A．It increased the students’ white blood cell count.
B．It increased some students’ energy level.
C．It improved the students’ ability to play musical instruments.
D．It released a natural painkiller in some students’ bodies.
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单项选择题
A．Jack has often had to wait for Shelly.B．Jack has made others wait before.C．Jack doesn’t usually make people wait.D．Jack was playing a trick.
A．Jack has often had to wait for Shelly.
B．Jack has made others wait before.
C．Jack doesn’t usually make people wait.
D．Jack was playing a trick.
单项选择题
A．Keep the party small.B．He suggests only he and the woman should arrange it.C．He suggests that they only have one party.D．He suggests that they keep it a secret.
A．Keep the party small.
B．He suggests only he and the woman should arrange it.
C．He suggests that they only have one party.
D．He suggests that they keep it a secret.
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