Please make sure the lights will ________if no one is in the room.

[　　]

Please make sure the lights will　　 if no one is in the room.

A、go out　　　　 B、turn off　　　 C、put out　　　 D、take away

Please _______ the lights will go out if no one is in the room．

1. A.
   make sure
2. B.
   be sure
3. C.
   make sure of
4. D.
   to make sure

Please__________the lights will go out if no one is in the room.?

A.make sure

B.be sure?

C.make sure of

D.to make sure

Please ________ the lights will go out if no one is in the room.

[　　]