A sheep ____on this kind of special grass which usually grows much faster than ____on ordinary.
To work at home, which one could hardly imagine, has been made _____ with the development of computer technology.
_____ the lawyers, volunteers from the Libyan Red Cross Society also joined the efforts in helping the Chinese go home safely.
The engineer spoke highly of the government’s efforts, ____ he owed his safe return from Libya.
—Why did you leave without a word of warning to John?—But what _____ otherwise? He never listens to me.
Mary often stays up, reviewing her lessons, books___ all over the desk.