Question

There was nothing they could do______. A．but wait　　　 B．except waiting C．only to wait

There was nothing they could do______. A．but wait　　　 B．except waiting C．only to wait　 D．unless they waited

Answer 1

A

考查固定短语be nothing but。当but做除了的意思讲的时候，要遵循“有do无to，无do加to”的原则， but前出现了do,but后的to就要省略。故选A。