In this task, you will be given a sentence or two along with a change aspect. You should change the given text in the given aspect. Aspects are explained below:
 Tense: Change the tense of the verbs in the text. If they're in past tense, change them to present, and if they're in present tense, change them to past tense.
Number: Change the number of the nouns in the given text. Make plurals into singles and single into plurals. Remember to change the corresponding pronouns accordingly.
Voice: If the verbs are in active voice, change them to be passive, otherwise, change them to be in active voice.
Adverb: add one or multiple adverbs to the text.
Gender: If the text contains female names and pronouns, substitute them with male names and pronouns. Do the same for sentences with mala names and pronouns.

sentence: I was trying to open the lock with the key , but someone had filled the keyhole with chewing gum , and I couldn't get it out . aspect: Voice
I was trying to open the lock with the key , but the keyhole had been filled with chewing gum by someone , and I couldn't get it out .

sentence: The dog chased the cat , which ran up a tree . It waited at the bottom . aspect: Number
The dogs chased the cats , which ran up a tree . They waited at the bottom .

sentence: The sack of potatoes had been placed above the bag of flour , so it had to be moved first . aspect: Tense
The sack of potatoes is being placed above the bag of flour , so it has to be moved first .