Smoking _______________ (not allow) on planes.
is not allowed
The work ________ (complete) by next month.
will be completed
Plastic ___________ (invent) in 1907
was invented
This cake ________ (bake) yesterday.
was baked
If he was more careful, he could have avoided making that mistake
The mistake could have been avoided if he was more careful.
People eat 40 million hamburgers every day.
40 million hamburgers are eaten every day.
The world’s first motorways _______________ (build) in Germany in the 1930s.
were built
The boy killed the spider.
The spider was killed (by the boy)
The students should present their project later today
Their (The students') project should be presented later today.
The road _____________ (repair) by the council this week.
is being repaired
We can't identify the writer of the poem
The writer of the poem can't be identified.
This photo __________________(take) by my grandfather when I was five.
was taken
The exams ________ (grade) next week
will be graded
Mary Shelley wrote the novel Frankenstein.
The novel Frankenstein was written by Mary Shelley.
Laws on plastic usage should ______________ (introduce) by governments
be introduced
By the time we got to the party, all the pizza _______________ (eat).
had been eaten
My grandmother made the cake yesterday.
The cake was made (by my grandmother) yesterday
Don’t turn round! I think we _______________ (follow)!
are being followed
This tree is very old. It ___________________(plant) in the 19th century.
was planted
Fifty scientists _______________ (take part) in the International Environment project so far.
have taken part
The car ___________ (wash) by the mechanic before I picked it up
had been washed
They clean the windows every week.
The windows are cleaned every week.
You must not waste your money on stupid things.
Your money must not be wasted on stupid things.
The 2022 Football World Cup _______________ (hold) in Qatar.
was held
A guide will take you to your seat.
You will be taken to your seat by a guide.