Надо вставить слова или составить предложения.Помогите,пожалуйста(

буду очень благодарен,заранее спасибо)

3sinx-2cos^x=0

5) sin^2x-3sinx*cosx+2cos^2x=0

... Moscow was built on ... Moskva River in ... twelfth century. Today it is ... world's sixth largest city with a population of almost 10 million.
... St. Petersburg is ... most notherly place of ... world's biggest cities ans has five million inhabitants. The city is situated on forty-four islands in delta of ... Neva.
As both Hitler and Napoleon discovered, ... winter can be extremly cold with ... temerature droppng as low as a record -42 C in ... Moscow.
There can be nothing more Russian than the crisp frost of ... winter, ice on ... Neva and show falling upon ... golden cupolas of ... Moscow's churches.

Слова: December,admire,is situated,built
вот предложения куда надо вставить :CN Tower ____ in Toronto,Canada.It`s the name of the railway company which ___ the tower in 1976.Brave tourists can _____ the city from under their feet.CN Tower is open every day exept _____,25th.

work, get, fly. Теперь предложения куда надо вставить слова: 1) Maria ......... of her MP3 player when she's at school. 2) Martha and Katie live far from their school, but they ........ on time for class every day. 3) You don't have to .............. part in the school performance if you don't want. 4) Ivan is an excellent student and always.....

даны слова: Make,tidy,his room. По этим словам нужно составить предложение. Например: Ann makes Steve tidy his room.
Упражнение№2
1) Want,make a mess,in the house,not.
2)Ask,turn the musik off.
3)Let,take,her things,not
4)Make,do the dishes.
5)Need,do the shopping.
6)Would like,walk the dog.

and ..... the furniture. On Saturday she ..... the shopping. On Sunday she ..... her grandparents to work in the garden. She says, "I ..... to spend time on doing things about the house. That ..... my family happier.
I have got many friends at school. Today we ..... a school project about the weather,so I'm very busy. Today it ..... , so all the people ..... their umbrellas with them. They ..... also ..... raincoats.

to come
to help.
to make.
to dust.
to do(2x).
to like.
to rain.
to have (2x).
to take.
to wear.
to clean.

(Слова которые надо вставить)