Eyedoctorsrecommendthatachilds

Eye doctors recommend that a child's first eye exam ________ at the age of six months old.

A．was	B．be
C．were	D．is

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Today we have chat rooms, text messages and email, but we seem _______ the art of communicating face-to-face.

A．losing	B．to be losing
C．to be lost	D．having lost

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_________ to too much sunlight will do harm to your skin.

A．Having exposed	B．Being exposed
C．To be exposed	D．Exposed

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（）There is no greater pleasure than lying on my back in the middle of the grassland, _____at the night sky.

A．to stare	B．staring
C．stared	D．having stared

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__________ the program , they have to stay there for another two weeks.

A．Not completing	B．Not having completed
C．Not completed	D．Having not completed

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What worried the child most was _______ to visit his mother in the hospital.

A．his not allowing

B．his not being allowed

C．his being not allowed

D．having not been allowed

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