相關Hasyourfriendcomplet的文學知識

問題詳情：﹣Hasyourfriendcompletedhisdesign？﹣Notyet．He________onitlastnight．A．worked    B．hasworked     C．isworking      D．wasworking【回答】D．知識點：動詞時態題型：選擇題...