After a long walk in the mountainous area, my legs___and I couldn't go any further.A,gave out B,gave off C, gave in D,gave up
She explained to me________personal computers let everyone explore their own ideas.
Sue will invite all her classmates to her house________coffee.
My doctor kept telling me about my weight, ________I never bothered.
In order to improve my spoken English, I read ________ English _______.
_______ in the room where Mr. Johnson lived _______ the exhibition was held?