— Could you tell me _____________ last night? — Er, I was watching TV at home.
The police warned the thief _______again.
I wonder_____ they will pass the exams or not.
The light______ by Edison is helpful for people.
—________do you practice your pronunciation? —I practice it _____ asking the teacher for help.
----Can you explain ______________________________, especially my writing? ----Of course. It’s my pleasure.