【推荐1】The Chinese government has introduced efforts to ______ the exploitation of underground water, ______ sources of drinking water and ______ the aquatic ecological system.

A．promote； protecting； regulating	B．regulate； protect； restore
C．restoring； promote； protect	D．regulating； restoring； protect

【推荐3】The newcomer is so shy that she tends to ______ herself from the rest of her classmates.

A．distance

B．protect

C．recognize

D．recover