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100

What do you think about extreme sports?

correct

100

I usually find Maths easy, but I’m not understanding this exercise.

Incorrect!
I usually find Maths easy, but I don't understand this exercise.

100

 Did you finish your homework yet?

incorrect

Have you finished your homework yet?

200

 I’m not often watching television on schooldays. 

Incorrect

I don't often watch television on schooldays. 

200

 I can’t go out now. I’ve just started eating dinner. 

correct

200

The students aren’t usually this noisy but today they are very excited.

The students aren’t usually this noisy but today they are very excited.

300

While my dad was driving to work, he was seeing his cousin.

Incorrect

While my dad was driving to work, he saw his cousin.

300

 We have been to the cinema last Friday. 

Incorrect

We went to the cinema last Friday. 

300

We’re trying to make our own website, but we are having a few problems.

correct

400

 You’re very quiet. What do you think about?

Incorrect

 You’re very quiet. What are you thinking about?

400

 I haven’t done anything interesting recently. 

correct

400

Did anyone phone me while I have been out? 

incorrect

Did anyone phone me while I was out? 

500

We are here for three days and we still haven’t been to the beach.

incorrect

We've been here for three days and we still haven’t been to the beach.

500

Did you buy any milk while you were at the supermarket?

correct

500

I haven’t never heard this song before. 

incorrect

I have never heard this song before.