The authorities have improved the public transport system recently. (improvements) The authorities the public transport system recently.

The authorities have improved the public transport system recently. (improvements)

The authorities ……………………………………………………………..………the public transport system recently.

Trả lời

Đáp án:

 The authorities have made (some) improvements in the public transport system recently.

       improve sth – make (some) improvements in sth

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