—Can't we go there on foot?—________to take a boat.

The accident      to the man who        to be a foreigner, so it was hard to deal with.

—Aren’t you tired of practicing playing the piano day after day?—        , I enjoy every minute of it.

His parents died in the strong earthquake, so he was _______by his grandmother.

 While we are developing agriculture and industry, we must prevent the earth ______.