The plane has ________ here since an hour ago．

A．reached

B．arrived

C．got to

D．been

My English teacher ________ the Great Wall three times since he came to China．

A．has been

B．has been to

C．has gone to

D．has gone

Since he started high school, he’s come to school by bike________．

A．on his own

B．by his own

C．in his own

D．with his own

Sorry, I ________the work yet．

A．have finished

B．didn’t finish

C．haven’t finished

D．finished

They________ in Beijing when they________ married．

A．live, get

B．lived, have got

C．lived, got

D．have lived, got

________people died in the terrible earthquake．

A．five hundreds

B．hundreds of

C．six hundred of

D．two hundreds of

He was sleeping________ his wife came home．

A．while

B．when

C．before

D．because

I miss my mother very much because she ________ home since last month．

A．has left from

B．has been away

C．has left

D．has been away from

This maths problem seems ________ for us to solve．

A．easy enough

B．enough easy

C．easily enough

D．enough easily

________ animals are danger and there will be________ space for them．

A．More and more, more and more

B．More and more, less and less

C．Less and less, more and more

D．Less and less, less and less