--- What’s your family rules?
--- We shouldn’t talk ____ food in our mouths while having meals.
A．with B．in C．of D．at
--- What’s the matter, Mary? You looked upset.
--- I failed again in my math exam. I’m really sorry because I don’t want to ____ my parents down.
A．turn B．write C．let D．take
--- Do you have any plans for this weekend?
--- I’m not sure. I _____ go climbing Mount Baoshi.
A．must B．can C．need D．may
The world’s population is growing ______, and there is ____ land and water for growing rice.
A．larger; less B．larger; fewer
C．more; less D．more; fewer
Lincoln came from nothing, yet but he did ____ that changed the world.
A．something B．anything
C．everything D．nothing
---Why didn’t Sally play the violin at the concert last night?
---She said that her hand hurt, but that was only a(n) _______. I saw her play tennis just now.
A．matter B．excuse C．result D．expression
