You can choose 1/2 and 2/2,3.
I know this reply is late but I do hope this would still be accepted with great appreciation since I just joined this site today. Well, I chose: 1.3 and 2.3 (my own opinion). Hoping that being a member in this site is fun and will give me a better understanding about the language - English.
In the time clauses such as these a learner, such as I am, sometime uses simple present and sometimes present perfect.
1) You'll be delighted when you hear this!
2) You'll have to learn till you understand the matter.
3) Will you ring us up when you return?
4) When you return I'll give you the key.
5) After you've been (you're possible as well) here for a year you will speak the language much better.
6) Your father will be furious when he sees what you've done!
7) When you've seen my work you'll agree with me.
8) When you've seen the chatedral we'll go to visit the musem afterwhat we'll take a rest having a drink.
9) When I've finished you may start to talk. (you must wait untill I have finished and not to interrupt my the last word in the sentence, even)
Some examples are from a book and some are not. So you may try to point which one could be wrong.
Last edited by e2e4; 09-Jul-2008 at 21:29.