---Lucy, is maths difficult to learn in a foreign school? ---I’m not sure, but no subject can be learned well __________hard work.
The books on the left shelf ______ quite interesting. You could read them to your kid before bedtime.
Betty, why didn't you answer the phone last night? —Oh, sorry about that. My mobile phone ______ in the living room.
Stop talking, Andy. You ______ your work yet. —Sorry, sir. I'll do it right away.
The fire______ in a shoe factory and burned an area of more than 800 square meters.
Happiness isn't getting all ______ you want. —I can't agree more. It's all about enjoying what we have.