Bring the flowers into a warm room      they'll soon open.

    A. or                B. and              C. but              D. for

 Bring the flowers into a warm room      they'll soon open.

 A. or               B. and             C. but          D. for

Bring the flowers into a warm room ___ they'll soon open.

A. or　　　　　　　 B. and　　　　　　 C. but　　　　　　 D. for

Bring the flowers into a warm room ________they'll soon open. 

A．or                 

B．and    

C．but                

D．for