单项选择题

A．New designs are being adopted.
B．Advertisements are being widely used.
C．New technology is being employed.
D．More synthetic materials are being introduced.
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单项选择题
A．She lost her job.B．She has an illness.C．Someone stole her money.D．She had an accident.
A．She lost her job.
B．She has an illness.
C．Someone stole her money.
D．She had an accident.
单项选择题
A．Bacteria that we used to worry about may help to solve the environmental problems.B．Bacteria will either destroy or build the natural world.C．Human beings can control the nature without the help of bacteria.D．People should be more aware of the environmental problems.
A．Bacteria that we used to worry about may help to solve the environmental problems.
B．Bacteria will either destroy or build the natural world.
C．Human beings can control the nature without the help of bacteria.
D．People should be more aware of the environmental problems.
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