Itwillbeveryconvenienttotravelinthiscitywhentheundergr...

問題詳情：

 It will be very convenient to travel in this city when the underground        next year.

         A. will be completed    B. is completed         C. has completed        D. would complete

【回答】

B

知識點：動詞時態與語態

題型：選擇題