English Grammar in Use Fifth Edition

UNIT 20
20.1
2  What are you going to wear?
3  Where are you going to put it?
4  Who are you going to invite?
5  How are you going to cook it?
20.2
2  I’m going to try
3  I’m going to say
4  I’m going to wash
5  I’m not going to accept 
6  I’m going to learn
7  I’m going to run
8  I’m going to complain
9  I’m not going to tell 
20.3
2  He’s going to be late.
3  The boat is going to sink.
4  They’re going to run out of petrol.
5  It’s going to cost a lot (of money) to 
repair the car.
20.4
2  was going to buy
3  were going to play
4  was going to phone
5  was going to be
6  was going to give up
7  were you going to say
UNIT 21
21.1
2  I’ll turn / I’ll switch / I’ll put
3  I’ll check
4  I’ll do
5  I’ll show 
6  I’ll have
7  I’ll stay / I’ll wait
8  I’ll try
21.2
2  I think I’ll go to bed.
3  I think I’ll go for a walk.
4  I don’t think I’ll have (any) lunch.
5  I don’t think I’ll go swimming today.
21.3
3  I’ll meet
4  I’ll stay
5  I’m having
6  I won’t forget
7  we’re going
8  Are you doing
9  Will you do
10  Do you go
11  won’t tell
12  I’ll do
21.4
2  Where shall we go (on holiday)?
3  Shall I buy it?
4  Shall we get a taxi (or) (shall we) walk? 
5  What shall I give/buy/get
 
Helen (for her birthday)?
6  What time shall we meet?