b ) is correct.

What are you trying to say? Sounds to me that you mean having a very good life, but it's not really a good way of saying it.

B: Before dinner, there was an arrival of some expected visitors, coming to stay for a time in the house. This is ok, although it's not really everyday English. More commonly, it would be "Before dinner, some expected visitors arrived,.......

When talking about something changing colour, we do not say "into". For example: "The sky turned red at sunset". We wouldn't say "The sky turned into red". Generally, where the colour comes directly after 'turned', do not say "into". Hence, "when

I think both are ok depending on what stage the new plan is at. "A" suggests that the new plan is still being created, and "B" suggests it is complete. Also, "B" should read "The event led to the creation of the new plan". Not "has led". "Has

Can I say, (a) You can heat / heat up the frying pan with a little oil on a stove. (b) When the bananas turns in / into (the) turn light brown, it is ready to be served. (c) When the frying pan is hot, dip the bananas in to the batter.

Double consiousness is not an expression I'm familiar with. The closest expression I can think of that describes someone who isn't sure of who, or what, they are is "identity crisis". That would fit for anybody who can't decide whether they

The expression you're looking for is "day book". This is an accounting term and there is a purchases day book, and a sales day book. They record the daily purchases/sales transactions before they are transferred to the ledger accounts.

In UK English, quite and rather are interchangeable. To say "It was quite a nice day" is less formal than "It was a rather nice day". The use of rather is stronger than the use of quite. In other words, using rather means it was very nice day, and

"I understand written German" is probably better.