A powerful chemical released when an allergen enters

He will say, ‘I am very busy.’

Select the correct direct form of the given sentence

He asked me if I was not thinking of investing then.

Select the most appropriate indirect form of the given sentence.

Walter said to David, “ I am looking forward to tomorrow’s auction.”

Change the following sentence to Direct Speech.

The lady replied that she was busy that evening.

"The taxi is here," said the watchman.

Change the following sentence to Indirect Speech.

He said to her, "I've been waiting here in the queue for over an hour".

Select the correct indirect/direct  speech for the given sentence 

Father said to son, “ what time do the schools open and close?”

The old man said to me, "Life has taught me some hard lessons."

I have flown this plane for seven years.

Select the most appropriate indirect form of the given sentence.