Passive Voice

The traffic is really bad this week because a volleyball tournament _______________ (hold) in our town.

The 2022 Football World Cup _______________ (hold) in Qatar.

Smoking _______________ (not allow) on planes.

Not much ____________(know) about this complicated subject.

I think hotels _______________ (build) in space in the future.

A lot of countries _______________ (take part) in the International Space Station project next year.

By the time we got to the party, all the pizza _______________ (eat).

Jenny ______________(complain) to the manager about the faulty items at the moment.

Don’t turn round! I think we _______________ (follow)!

 the jewellery from the safe _____________(steal) yesterday.

The world’s first motorways _______________ (build) in Germany in the 1930s.

This photo __________________(take) by my grandfather when I was five.

Fifty scientists _______________ (take part) in the International Environment project so far.

This piece of music _____________(not record) yet. I've just composed it.

This tree is very old. It ___________________(plant) in the 19th century.