Seeing the happy ________ of children playing in the park, I'm full of joy and confidence in the future of our country．

A．sight

B．scene

C．view

D．sign

Amy joined a painting group but didn't seem to ________, so she left．

A．set loose

B．show off

C．appeal to

D．fit in

Words ________ me when I wanted to express my thanks to him for having saved my son from the burning house．

A．failed

B．left

C．discouraged

D．disappointed

However good an advertisement is, people are ________ to be persuaded if the product is unsuitable for them．

A．impossible

B．unlikely

C．difficult

D．constantly

There is one other dangerous animal in Australia worth ________ and that is the crocodile．

A．mentioned

B．to be mentioned

C．being mentioned

D．mentioning

You could not imagine a more disturbing sight than ________ the seamen looked like when arriving in Timor．

A．how

B．what

C．that

D．which

Mr．Li has some trouble sleeping, so dinking a glass of milk before going to bed every night is his common ________．

A．practice

B．knowledge

C．experience

D．duty

The man is very proud ________ with Captain Blight on his journey across the Pacific Ocean．

A．for sailing

B．to sail

C．in sailing

D．to have sailed

John ________ in the woods near his home in Milkovica when a bear attacked him from behind．

A．was hunting

B．had hunted

C．hunted

D．has been hunting

After ten years of hard work, she changed a lot and looked different from ________ she used to be．

A．that

B．whom

C．what

D．who