单项选择题

A．It can be used by farmers to protect large buildings.
B．It was brought to the northern USA by Asian farmers.
C．It has done more harm than good in the southern USA.
D．It was introduced into the USA to kill harmful weeds.
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单项选择题
A．He will return the following week.B．He will be back immediately after the holiday.C．He will come back for the holiday.D．He will begin his vacation next week.
A．He will return the following week.
B．He will be back immediately after the holiday.
C．He will come back for the holiday.
D．He will begin his vacation next week.
单项选择题
A．Friday.B．Saturday.C．Sunday.D．Monday.
A．Friday.
B．Saturday.
C．Sunday.
D．Monday.
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