Such crimes may be so complex that months or years go by before anyone______ them.
| A．discovered | B．would have discovered | C．will discover | D．discovers |
He recommended that she ______and see the film.
| A．will go | B．goes | C．go | D．would go |
I’m Chinese and I do feel ________ Chinese language is _____most beautiful language. What’s your opinion?
| A．the; a | B．不填； the | C．the;不填 | D．不填； a |
.It _____we had stayed together for a couple of weeks ____I found we had a lot in common.
| A．was until; when | B．was until; that |
| C．wasn’t until; when | D．wasn’t until; that |
.In my opinion, life in the twenty-first century is much easier than _______.
| A．that used to be | B．it is used to | C．it was used to | D．it used to be |
.He said he _________ experiments those days.
| A．was doing | B．had been doing | C．has been doing | D．is doing |