Question

Use each form (present simple,present continuos,future simple,the be going to-form)only once in each dialogue.
Ive made up my mind to try and learn the German language.And i (do) a course.It (star) next monday.That's really great.Im sure you (enjoy) it.Languages (become) more and more important now.We (go) to england soon.Have a good time.Thanks.I (send) you a postcard when i (be ) london .I think it (be) great.Where are you going to stay in London?We've already booked a room.We (stay) at the Royal Hotel in the city centre.What are you going to do in London?We (do) all the sights if we (have) time!But i don't thinkwe (manage) that.

Answer 1

I'll write only answers, ok?
1) am going to do
2) is starting
3) will engoy
4) become
5) are going 
6) will send 
7) will be
8) will be
9) staed
10) are going to do
11) will have
12) will manage