Question

4. They
a. is
already completed this task.
b. have
C. did​

Answer 1

Answer:

${} \huge \color {pink} \boxed{\colorbox{blue}{✿ Answer }}{} \\ \rm \: They \pink{ \underline{ \: have}} \: already \: completed \: this \: task.$

Explanation:

$\sf \: It's \: a \: sentence \: of \: present \: perfect \: tense. \\ \\ \sf \: Hope \: the \: above \: pic \: will \: help \: you.$