दिए गए विकल्पों से रिक्त स्थान भरें। By next July, I ________ in this office for ten years.

Identify the tense of the given sentence: 'The world has been infected with our ill-manners.'

Select the most appropriate option for the given blank. By the time you ______ my place, I will have left.

Select the most appropriate option to fill in the blank: 'Nisha ________ for her toy, which she misplaced last week.'