Homework Choose between for and since for each of the following questions.
1. I've known my best friend 15 years.

a) for
b) since
2. last Christmas, I haven't eaten any chocolate.

a)for
b)since
3. He's been sick the last week.

a)for
b)since
4. Bob's worked there 1984.

a) for
b) since
5. I've been telling you to hurry up the last 30 minutes!

a)for
b)since
6. My mother has been trying to call me last week.

a) for
b) since
7. They have been colleagues a long time.

a)for
b)since
8. He has been studying Russian a few months.

a) for
b)since
9. I haven't seen her last year.

a)for
b) since
10. I've been angry at him a couple of weeks ago.

a) for
b)since​

1. I've known my best friend _for 15 years.

a) for

b) since

2. __since ___ last Christmas, I haven't eaten any chocolate.

a)for

b)since

3. He's been sick __since ___ the last week.

a)for

b)since

4. Bob's worked there __since___ 1984.

a) for

b) since

5. I've been telling you to hurry up __for___ the last 30 minutes!

a)for

b)since

6. My mother has been trying to call me __since___ last week.

a) for

b) since

7. They have been colleagues __for ___ a long time.

a)for

b)since

8. He has been studying Russian ___for __ a few months.

a) for

b)since

9. I haven't seen her __since ___ last year.

a)for

b) since

10. I've been angry at him __since___ a couple of weeks ago.

a) for

b)since​

Объяснение:

1. for (a)

2. for (a)

3. since (b)

4. since ( b )

5. for ( a )

6. since ( b )

7. for (a )

8. for (a)

9. since (b)

10. for (a)

Объяснение: