Complete the sentence using the most suitable form of the verb 'sleep'.
A: "Why didn't you answer his call last night?"
B: "I ________ when he called."
1
am sleeping
2
sleep
3
slept
4
was sleeping
Complete the sentence using the most suitable form of the verb 'sleep'.
A: "Why didn't you answer his call last night?"
B: "I ________ when he called."