The country has already sent up three unmanne...

The country has already sent up three unmanned spacecrafts， the most recent 　　　 at the end of last March.

A. has been launched   B. having been launched

C .being launched      D. to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecraft, the most recent ______ at the end of last March．．

A．has been launched                        B．having been launched

C．being launched                           D．to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecrafts, the most recent ____at the end of last March．

A．to be launched         B．launched

C．being launched        D．has been launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecraft, the most recent ________ at the end of last March.

A. has been launched     B. having been launched

C. being launched        D. to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecraft, the most recent ________ at the end of last March.

A．has been launched     B．having been launched

C．being launched        D．to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecraft , the most recent________at the end of last March.

A.has been launched         B.having been launched

C.being launched                D.to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecraft，the most recent ________ at the end of last March.

A．has been launched　                     B．having been launched

C．being launched　                         D．to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecraft，the most recent ________ at the end of last March.

A．has been launched　 B．having been launched

C．being launched　　 D．to be launched

高三英语单项填空中等难度题查看答案及解析

The country has already sent up three unmanned spacecrafts, the most recent ________at the end of last March.

A. has been launched    B. having been launched   C. being launched     D. to be launched

高三英语单项填空困难题查看答案及解析

The country has already sent up 3 unmanned spacecraft, the most recent ________ at the end of last March.

A．was launched                          B．being launched

C．has been launched                      D．having been launched

高三英语单项填空困难题查看答案及解析