现在工作为了以后享受的延迟满足的观念帮助塑造了现代社会的经济行为。然而，这种观念不再像从前那

They built strong walls round the town as a______against the enemy.

A．defense

B．defend

C．defeat

D．depend

A．defeat

B．defend

C．defense

D．depend

The passage suggests that ________

A.all the native Indians built trunk walls all around their houses

B.all the native Indian houses were built with poles tied together

C.the Iroquois Indians took safety into account while building their wigwams

D.the Choctaw Indians in Mississippi built their wigwams with straight sides and ends

Since the scheme started，no walls in the town were sprayed with graffiti．

A．Right

B．Wrong

C．Not mentioned

The house ______ on the edge of the town will be their villa.

A．to build

B．being built

C．building

D．having built

A、A. are built

B、B. were built

C、C. built

D、D. were building

Since the scheme started，no walls in the town were sprayed with graffiti．

A．Right

B．Wrong

C．Not mentioned

The house on the edge of the town will be their villa.

A．to build

B．building

C．being built

D．having built

The house ______ on the edge of the town will be their villa.

A．to build

B．being built

C．building

D．having built

The house ______ on the edge of the town will be their villa.

A．to build

B．being built

C．building

D．having built