The key the earth is to change the way we live.
#96487
A
to save; /
B
to saving; /
C
to save; how
D
to saving; how
推荐题目
We are going to talk about the problem _____ at the last meeting.
#94415
A
discussed
B
discussing
C
to discuss
D
being discussed
–I’d like to buy a new CD player. –Well, we have several models ________.
#96497
A
to choose of
B
to choose from
C
to be chosen
D
for choosing
There are still many problems ______ before we are ready for a long stay on the Moon.
#88396
A
solving
B
solved
C
being solved
D
to be solved
________ the meeting himself gave them a great deal of encouragement.
#89167
A
The president will attend
B
The president to attend
C
The president attended
D
The president's attending
with a murder, the young man is being questioned by the police.
#97456
A
To connect
B
Having connected
C
Connecting
D
Connected