Unit 9 and 10 interchange 1 book red

My grandparents walk _____ twenty minutes a day.

• for

• since

How long is it _____ you visited your grandparents?

• since

• for

My teacher has been sick _____ last Monday.

• since

• for

I have been calling you _____ half-an-hour.

• for

• since

Have you finished your lunch _____?

• already

• yet

We’ve _____ been to England.

• already

• yet

(at 10.30 a.m.) .................. Julie this morning?

• Did you see

• Have you seen

Oh no! ...................... my keys!

• I've lost

• i lost

................... to the cinema yesterday.

• I went

• I've gone

How long .................. your best friend?

• did you know

• have you known