The Chinese doctors have ___ a major breakthrough in the treatment of COVID-19.（　?。?/h1>

A．make

B．to make

C．made

D．making

【答案】C

【解答】

【點(diǎn)評(píng)】

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發(fā)布：2024/4/20 14:35:0組卷：18引用：1難度：0.8

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A．will be increasing	B．has increased
C．were increasing	D．have increased

A．were made	B．have made
C．a(chǎn)re made	D．have been made

The Chinese doctors have ___ a major breakthrough in the treatment of COVID-19.（ ?。?/h1>