Question

---Mum, can I go to the zoo with Jack this weekend?

---When your homework_______, you can.

1. A.
   is done
2. B.
   was handed in
3. C.
   will be completed
4. D.
   had been finished

Answer 1

A
考查被动语态。这里是when引导的时间状语从句，故从句中用一般现在时，而作业与做之间是被动关系，故用一般现在时的被动语态。故选A。