—Goodnews！Self－drivingcarswillcomeintouseinoneortwoyear...

問題詳情：

—Good news！Self－driving cars will come into use in one or two years.

—Really？We're expecting to see how they ________.

A. are making  B. are made   C. make  D. will make

【回答】

B

知識點：動詞語態

題型：選擇題