The earthquake measured 9.0 in Indonesia was recorded as ________ since 1900．

the five strongest

the fifth strongest

the fifth stronger

fifth strongest

The wings of the plane, which stretched out for 80 feet, were ________ of its body．

more than the length twice

more than twice the length

twice the length more than

twice more than the length

A NASA experimental jet, the X-43A, flew at a world-record speed－11 260 kilometers an hour on November 17．This speed is ________ as sound．

as ten times fast

ten times so fast

ten times as fast

ten times faster

I wish you’d do ________ talking and some more work．Thus things will become better．

a bit less

any less

much more

a little more

This washing machine is environmentally friendly because it uses ________ water and electricity than ________ models．

less; older

less; elder

fewer; older

fewer; elder

Is your headache getting ________?

better

bad

less

well

I have worked with him for some time and have found that he is _________ than John．

more efficiently a worker

a more efficient worker

more an efficient worker

a worker more efficiently

You planted more trees than Class 1 ________ last week．

have

have planted

did

planted

Neither of the knives can do．This one ________ is the other．

not sharper than

no sharper than

as sharp as

less sharper than

Professor White has written some short stories, but he is ________ known for his plays．

the best

more

better

the most