高中英语动词语态单选题

. An awful accident ________, however, occur on the express the other day.

A．does

B．did

C．has

D．had

.Growing around the river ________ wild flowers of almost the same colour.

A．is

B．was

C．are

D．has been

. A variety of courses ________ offered to enrich the students’ background knowledge of the English-speaking countries.

A．were

B．is

C．have

D．has E) /

. Though having a big market share, most electronic devices of this kind/type/sort ________ found poor in quality.

A．is

B．being

C．are

D．having been

E) has           F) have            G) /              H) is being

. Statistics ________ that most of the published and quoted scientific articles are related to medical science.

A．has shown

B．is shown

C．show

D．shows

With more forests being destroyed, huge quantities of good earth _____each year.

A．is washing away	B．are being washed away
C．are washing away	D．is being washed away 

I'd like to have visited the Palace Museum last week, but something unexpected _____to my father.

A．had happened

B．happened

C．has happened

D．happens 

— The floor is too dirty.
— I know.  It  _______ for weeks.

A．hasn’t cleaned

B．didn’t clean

C．hasn’t been cleaned

D．wasn’t cleaned

Linyi isn’t what it used to be. The last decade_______great changes in the city image.

A．witnessed

B．was witnessing

C．has witnessed

D．had witnessed

----- Did you visit her while you _____ in New York?
----- I _____ to, but I was extremely busy.

A．stayed; was intending	B．was staying; intended
C．was staying; have intended	D．stayed; had intended

My goodness. How lucky we are! If there had been places for us on that aero-plane, we ________dead now.

A．will be

B．would be

C．would have been

D．had been

Because of climate change, the ice that polar bears depend on for survival       .

A．are slowly disappearing

B．is slowly disappearing

C．are slowly disappeared

D．have slowly disappeared

—Did you tell Jack that you’d already got a job?
—Oh, no. I forgot. I         him now.

A．am going to call

B．will call

C．call

D．am calling

Professor Li, who I _________ abroad, still teaches in Peking University.

A．think went

B．think to have gone

C．thought went

D．thought had gone

Although many measures ______,the world’s economy is still going down.

A．were taken

B．have been taken

C．will be taken

D．are taken