Question

add "since" or" for "to the following sentence
1. you have been watching TV _____ hours
2.we have been living here ____ 2 months
3. I have been waiting ____ 4 'o' clock
4.sue has only been waiting ____ 20 min​

Answer 1

Answer:

.........

Explanation:

1 for

2 since

3 since

4 since

Answer 2

Answer:

for in option 1,since in 2 option,for in option 3,for is in option 4