giúp mình 4 câu trắc nghiệm ạ. mình cảm ơn rất nhiều! 1. _________________, there's no place like home. A. Be it ever so humble B. Should it be humble C. As humble as it could be D. Only when transferred 2. The kid's performance was admirable __________________-. A. but for their informal trainning B. in as much as they had received no formal training C. although their training was formal D. regardless of the informal training they received 3. _________is the movement of highly skilled and qualified people from their own coountry to another. A. what is referred to as "brain drain" B. Referred to as "brain drain" C. People refer to "brain drain" D. That it is referred to as " brain drain" 4. __________ and now i was left my own. A. when all guest had gone B. Seeing all the guest off C. gone all the guests were D. Off went the guests