No commas required. Did the novelist Ernest Hemingway, who was the most influential writer of the last century, once live here?

"The KGB has been watching the spy." (active voice) "The Spy has been being watched by the KGB." (passive voice)

Only number 1 is correct. The main verb (the one that comes after the modal verb--will, would, could, can, etc.) is always in the infinitive (without "to"). Regarding to your second question, you must use a participle form of the verb to make

Yes.

- 'I work at night' or 'I work the night shift' (if you work the night shift, you work at night) - 'I work the graveyard shift'.

1. a. 'My favourite fruit is an apple.' b. 'My favourite fruit is apple.' c. 'My favourite fruit are apples.' d. 'My favourite fruit is apples.' - You don't like an apple in particular. 'My favourite fruit is an apple from Brazil, but I

Certainly.

Yes, it can.

Number one is always correct. Number two is acceptable in informal writtings and conversations. This issue has been discussed more than once here, not long ago.

Your question was about the commas, but I couldn't help myself and try to improve your sentences. 1. No, he hasn't called on us, neither this month nor the last. 2. After he began the meeting, he said "I am going home". or After he began the