______ has long been well known as a poet who can hardly be classified with the old o

It has long been known that there is an electric field ______.

A、inside the earth

B、inside earth

C、inside an earth

D、on earth

He has been looking forward to _____ to England for a long time.

A、going

B、goes

C、go

--- __________？

--- Two years ago.

A. Where did he go

B. How long has he been in America

C. When did he go to America

A.obstacle

B. holdback

C. cornerstone

D. hindrance

A.responsible

B.illegal

C.historical

D.notorious

A.infection

B.affection

C.deficiency

D.effecting

A、used to

B、is used to

C、use

D、use to