His parents are convinced ____ the fact the their son always focuses his mind ___ his study

I’ve shown you all the interesting and important places of our school.—Thank you for ________ so much time.

There used to be a lot of fish in the lakemany years ago.— Yes, but there are very _______ now becauseof the pollution.

We don’t know they did it.

Let’s go to find our manager in hisoffice —-It’s so late at night He bethere Let’s make it another day