. —How much of the foreign expert’s speech have you understood?
—Next to nothing. I wish I _______ harder at English.
| A．worked | B．had worked | C．would work | D．were working |
Close the door of fear behind you, and you ____ the door of faith open before you.
| A．saw | B．have seen | C．will see | D．are seeing |
The moment ____ soon, he thought to himself, waiting nervously.
| A．came | B．has come | C．was coming | D．is coming |
-- I remember you were a talented pianist at college. Can you play the piano for me?
-- Sorry, I ____ the piano for years.
| A．don't play | B．wasn't playing | C．haven't played | D．hadn't played |
（2012江西卷）--Look! Somebody the sofa.
--Well, it wasn’t me. I didn’t do it.
| A．is cleaning | B．was cleaning | C．has cleaned | D．had cleaned |
（2013·辽宁卷)We are confident that the environmenr by our further efforts to reduce pollution
| A．had been improved | B．will be imroved | C．is improved | D．was improved |