精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

Many people have telephoned the travel agency,         for further information about a tour to Taiwan.

A. asked           B. to ask            C. asking           D. having asked

Many people have telephoned the travel agency,         for further information about a tour to Taiwan.

A. asked           B. to ask            C. asking           D. having asked

Many people have telephoned the travel agency, ________for further information about a tour to Taiwan.

A. asked           B. to ask             C. asking      D. having asked

Many people have telephoned the travel agency,         for further information about a tour to Taiwan.

A. asked           B. to ask             C. asking      D. having asked

Many people have telephoned the travel agency,          for further information about a tour to Taiwan.

A．asked                B．to ask           C．asking          D．having asked