How close parents are to their children ________ a strong influence on the character of the children．

A．have

B．has

C．having

D．to have

A complete ________ of information added to the difficulty in finishing the project on time．

A．collection

B．absence

C．expense

D．effect

When he ________ the door, he found his keys were nowhere．

A．would open

B．opened

C．had opened

D．was to open

It is the prevention of disease ________ its successful treatment that has led to the rapid increase of the world's population．

A．rather than

B．more than

C．other than

D．less than

________ I admit that the problems are difficult, I don't agree that they can't be solved．

A．In case

B．While

C．As

D．Because

He is looking for another job because he feels that nothing he does ________ his boss．

A．serves

B．promises

C．satisfies

D．supports

The play was popular and every time ________ about it, he owed his success to the support of his friends．

A．talked

B．when talked

C．talking

D．when talking

Everyone knows ________ is dangerous to play with fire, but ________ is difficult is to prevent children from playing with fire．

A．that; it

B．it; it

C．that; what

D．it; what

The newly built cafe, the walls of ________ painted light green, is really a peaceful place for us, especially after hard work．

A．whose

B．it

C．what

D．which

The falling of the new building ________ its soft base．

A．resulted in

B．resulting from

C．leading to

D．lay in