Ages and stages
Add a preposition and make a sentence
What's the use?
Will or going to?
Is there a mistake?
100

be 1-3 years old

be a toddler

100

happy

about/with

100

The bus goes every 15 minutes.

timetables and schedules

100

The suitcase is so heavy!  -   I ________________help you!

will - to make offers and promises

100
My flight is leaving at seven, so we need to be at the airport two hours before that. 

Incorrect! My flight leaves at seven - timetables and schedules

200

Be 0-1 years old

be an infant

200

aware

of

200

Text me as soon as you arrive home!

in future time clauses after when, as soon as, after, (the) next time, etc.

200

What are you going to do in the holidays? -I don't know yet. I ______________ talk about it with my sister tonight. 

will - when we decide what to do at the moment of speaking

200

It seems that the Earth's climate is getting hotter.

Correct.

300

be 40-90

be middle-aged

300

addicted

to

300

They are playing a football game at present.

something happening now or about now

300

Loo! That car's going too fast. I ____________ to crash.

is going to - when it is based on what we can see or hear

300

''Have you got any plans for tomorrow?'' - ''I will meet Vicky!''

Incorrect. I'm going to meet Vicky! - future arrangements

400

be 18+

be an adult

400

obsessed

with

400

Water boils at 100 degrees Celsius.

a permanent situation or fact

400

______________ (you/see) James this evening?

are you going to-  when we have already decided what to do

400

The forecast said that tomorrow's weather is going to be cold and wet.

Incorrect. The weather forecast said that tomorrow's weather will be cold and wet - when it is based on what we know or is just a guess

500

be 100+

be a centenarian

500

curious

about

500

She is having a meeting with a headmaster tomorrow. 

future arrangements

500

If he's a really good friend, he ______________ get angry (negative).

will not/won't - when it is based on what we know or is just a guess

500

When Ann will receive the first salary, she will buy a new smartphone. 

Incorrect. When Ann receives the first salary, she will buy a new smartphone - in future time clauses after when, as soon as, after, next time, etc.