Correct a mistake
Tenses (active & passive)
ing or to
Conditionals & wish
mixed
100

I have been knowing her since childhood, she’s a great friend.

I've known her ...

100

When I phoned my friends, they ____________(play) monopoly.

were playing

100

The doctor refused ___________(tell) about her condition after the surgery.

to tell

100

If I _____ (have) a million dollars, I ______ (travel) the world.

had - would travel

100

Report it: She said, "I will be late tomorrow."

She said/told me (that) she would be late the next day. 

200

The gas prices are likely go up because of the political conflict.

... likely TO go up ...

200

The problem  ___________ (already, solve) when they arrived.

had already been solved

200

Lora insisted on _________(change) the color of the logo from black to blue

changing

200

If you ______ (tell) me earlier, I ______ (can / help) you with your project.

had told, could have helped

200

____________ of the bad weather, they decided to go for a picnic. (contrast) 

In spite 

300

He asked us how much was the entrance fee.

He asked us how much the entrance fee was.

300

Don’t go there! The floor ________(just, paint).

has just been painted

300

We can’t afford ___________(do) it now as adults.

to do

300

If we ___________(live) in the USA, we ___________(travel) to California with our friends last summer.

lived - would have travelled 

300

Report: "I finished my homework yesterday." She..:

She had finished her homework the day before.

400

You mustn’t pay the rent in advance – you can pay later.

You DON'T HAVE TO pay the rent...

400

By the time I finish the book the author _______ (write) a new one.

will have written

400

Don’t you miss ___________(be able) to sleep in the afternoon when you were a child?

being able 

400

She __________ (be) here with us today.

wishes she were

400

By the time I arrived, the cake __________ (eat).

had been eaten

500

We are really looking forward to see you next month at the job fair.

... looking forward to SEEING you

500

He _________ (live) in Beijing for three years when he lost his job.

had been living/ had lived

500

The receptionist agreed ___________(change) our room because we promised not ___________(write) a bad review of the hotel.

to change, to write

500

I __________ (remember) to bring my umbrella yesterday.

wish I had remembered 

500

Deduction: She __________ (be) ill because she missed work.

Must have been