_______ on the American Civil War, the book attracted a large number of readers when it was published.
| A．Based | B．Basing |
| C．Having based | D．Being based |
When their first child was born, they _________ for three years.
| A．had married | B．had been married |
| C．got married | D．had got married |
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 |