His explanation is ________．

A．by far clearer

B．clearer by far

C．the clearer by far

D．the clearer

Their new assistant is ________ than the old one．

A．more better

B．far better

C．very better

D．many better

This book is ________ for a seven-year-old child to read．

A．too much difficult

B．too more difficult

C．much too difficult

D．more too difficult

You know ________ about it than Tom does．

A．even little

B．even less

C．more little

D．more less

John is ________ the cleverest boy in the school．

A．far

B．by far

C．the far

D．by far the

John works ________, but Mike hardly works．

A．hard

B．hardly

C．hardest

D．hardlier

How ________ the boy is to learn to talk!

A．slow

B．slowly

C．a slow way

D．a slow

He is ________ interested in English, he often works at it ________ into the night．

A．deep; deep

B．deeply; deep

C．deep; deeply

D．deeply; deeply

I came here ________ to ask for your instructions．

A．specially

B．especially

C．particularly

D．special

They told me that he had left for the country some days ________．

A．ago

B．after

C．long

D．before