Don’t disturb me. I ______ letters all the morning and have written ten so far.
| A．write | B．was writing | C．have written | D．have been writing |
If youyour teacher’s advice, you would not have failed the exams last week.
| A．take | B．were taking | C．took | D．had taken |
--- When did Lily’s brother finally stop drinking alcohol?
---It was in May ______ he was put into prison for drunk driving.
| A．that | B．since | C．when | D．before |
---What do you think of ________ gifted chemist from London?
---Well, sometimes his behavior is beyond ________ comprehension.
| A．a, the | B．the / | C．the the | D．a / |
visual
| A．measure | B．insurance | C．sugar | D．persuade |
abstract
| A．parent | B．expand | C．acre | D．adjust |