правильный вариант:
1 A uniform (not an)
2 A really (not the)
3 THE sky (not a)
4 to THE USA (артикль THE пропущен)
5 A doctor (not the)
6 тут вроде не надо the перед chinese
masha is fourteen years old
I will go to the theatre if I go out tonight.
I will be angry if you get back very late.
We'll see each other next month if we don't see each other next month.
If they come, I will be surprised.
We'll be late if we wait here.
We will go to Italy if we go in holiday thus autumn.
We won't have a picnic if the weather doesn't improve.
Peter and Jack will go to the party if they are invited.
I will be tired tomorrow if I don't go to bed early this evening.
We will feel sick, if we eat all these cakes.
I've earned money for the second bike.
1-3) lost (yesterday - значит, Past Simple)
2-1) travel (every year - повторяющиеся действия - Present Simple)
3-3) will write (tomorrow - Future Simple)
4-2) has just done (just - только что - Present Perfect)
5-1) damage (ущерб)
6-3) development (застройка)
7-3) launched (to launch - запускать)
4-1) researcher (исследователь)
5-3) continent