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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The manager is said to have arrived back from Paris where he __________ some European business partners.

A．would meet

B．is meeting

C．meets

D．had met

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When he found many people were gathering there, he went to see what __________.

A．happened

B．would happen

C．has happened

D．had happened

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He __________ that until he __________ the directions once again.

A．didn't understand ； had read

B．hadn't understood ； read

C．understood ；had read

D．understood ； read

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A．passed

B．was passing

C．had passed

D．has passed

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__________ the time the firemen arrived, the building had been burnt to pieces.

A．At

B．Till

C．When

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