दिए गए वाक्य को past perfect continuous tense रूप में व्यक्त करने वाले विकल्प का चयन करें। They will have been staying there since January.

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.'