单项选择题

A．Long exposure to the sun.
B．Lack of sleep.
C．Too tight a hat.
D．Long working hours.
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单项选择题
A．Computer lab services.B．College library facilities.C．The use of micro-computers.D．Printouts from the laser printer.
A．Computer lab services.
B．College library facilities.
C．The use of micro-computers.
D．Printouts from the laser printer.
单项选择题
Easter day is celebrated every year on March 21st.
A．Y
B．N
C．NG
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