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题型：单选题题类：模拟题难易度：普通

In some cities, something _______ to stop the sale of live poultry（活禽）during the past weeks.

A、will do B、have done C、has been done D、will be done

举一反三

-- Mum, can I go to the zoo with Jack?

-- When your homework , you can.

A terrible accident happened here just now. A teacher with some of his students sent to the nearest hospital.

Many more houses ________ for teachers since last year.

这首诗已经被翻译成了多种语言。

This poem has {#blank#}1{#/blank#} into many kinds of languages.

We have built many underground railways in the past few years.(改为被动语态)

Many underground railways {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}built in the past few years.

It is the first time in the history that the Opening Ceremony ____ in a stadium. ____, the ceremony was held in the heart of the Paris: the Seine River.

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