Only when        .

       A．did he arrive the meeting began     B．he arrived did the meeting begin

       C．did he arrive the meeting begin     D．he arrived the meeting began

Only when _________________.

A. did he arrive the meeting began       

B. he arrived did the meeting begin

C. did he arrive did the meeting begin       

D. he arrived the meeting began   

Only when _________________________.

 Only when _______ .

         A．did he arrive the meeting began      B．he arrived did the meeting begin

         C．did he arrive the meeting begin       D．he arrived the meeting began

He said he would come to see the film, and he _________ arrive before the lights _________．

1. A.
   was supposed to; went out
2. B.
   must; go out
3. C.
   should; turn off
4. D.
   have to; went out