ЖЕЛАТЕЛЬНО С ОБЬЯСНЕНИЕМ, ЗАРАНЕЕ

ответ:21. Jack is not sure if he will be in London next week.

22. .If he go to London next week he will meet his cousin Mary.

23. If you don`t change your plans for the coming summer, i`ll go to the sea with you.

24. I don`t know when i will watch film but i really want to do it.

25. Please tell me when you will be able to come and see us.

Объяснение:

Во всех предложениях будущее время , значит мы везде ставим "will" . Но в 23 предложении у нас условное придложение, значит после if у нас Present Simple

individual parts will be created by us

new properties of metals were discovered by further people

various processes are included with 3 metalworking categories

The shape of the object are modified with these processes by deforming it

the metal was poured into a mold and was cooled by engineer

the material was deformed with hammers while it was at forging temperature by the student

excess materials had to be removed using the tools

a hole will be drilled in a metal part by scientists

heat welding is used very often by people today

a new shape of material is needed to be obtained by us

1. I usually spend mu summer holidays in at the seaside. 2. I like to swim, sunburn or just relax from my everyday problems. 3. I like to spend time with my granny. I help my her to cook different dishes and then all our family have a great dinner. 4. In the city I like to meet with my friends. We go to the cinema or parks together. 5. To my regret, camps is not my cup of tea. I prefer to stay at home and meet with my old friends. 6. Of course, I do. Summer is period of year that is liked by every studen in the whole world. You don't have to go to school and do your homework. Isn't it wonderful?