_____ from other continents for millions of year, Australia has many plants and animals not found in any other country in the world.
#90380
A
Being separated
B
Having been separated
C
Having separated
D
To be separated
推荐题目
.---Have you any letters ______, sir? I’m free this time. ---No, but thank you all the same.
#97028
A
to type
B
to be typed
C
to be typing
D
typed
Did you have any difficulty _____ his house?
#94176
A
on finding
B
to finding
C
for finding
D
in finding
To complete the project as planned, the workers were busy working all day, only ______ a short rest once in a while.
#89562
A
to take
B
to have taken
C
having taken
D
taking
To succeed in a scientific experiment _____ .
#98179
A
carefulness is need
B
carefulness is one needs
C
one needs to be careful
D
one need being careful
________ abroad for a tour can be a great honor for an ordinary person like me.
#92013
A
Taking
B
Taken
C
Being taken
D
Having been taken