Asweallknow,Jackisexperiencedt

As we all know, Jack is experienced _____ the problem of this kind.

A．to work out

B．at working

C．at working out

D．for working out

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A．being weighed

B．to weigh

C．weighed

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— ;we are too busy at present.

A．Don’t worry

B．Don’t mention it

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A．suffer for

B．suffer

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A．vision

B．look

C．picture

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John was dismissed last week because of his attitude towards his job.

A．informal

B．casual

C．determined

D．earnest

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