помогите пожалуйста переделать предложения в Passive Voice

Rewrite the following sentences into Passive Voice:

We cultivated 67% of our land last yera

They say that such services as banking, insurance and business services have the largest proportion of GDP.

The bank of England coordinates interest rates' moves with the European Central Bank.

The UK has almost exhausted its oil and gas resources

They had already taken measures to stimulate the economy when the crisis started

The country used extensive waic extensive waterways to shape the economic growth over the years.

California made its "silicon Valley" a source of technical innovation.

US government seeks to maintain high levels of employment and stable