The country has already sent up three unmanned spacecraft, the most recent at the end of last March.
#97890
A
has been launched
B
having been launched
C
being launched
D
to be launched
推荐题目
The children all turned___________the famous actress as she entered the classroom.
#95675
A
looked at
B
to look at
C
to looking at
D
look at
Jack, who claimed ______ everything clearly, however, he told a lie.
#90533
A
to have heard
B
to hear
C
having heard
D
hearing
An underwater hotel has opened in Africa，with its rooms＿on the bottom of a three－level floating building．
#89577
A
to sit
B
sit
C
sitting
D
sat
Discovery in a South African cave suggests that modern human behavior ____ much earlierthan ____.
#88366
A
begin, previously thought
B
began, previously thought
C
should begin, previous thinking
D
began, previous thinking