I think ___ knowledge of the Internet is ____ must in our work today.
| A．a…..a | B．the….an | C．the….the | D．/…an |
Peter phoned to say they had arrived safely, so put your mind ______.
| A．with ease | B．by heart | C．in peace | D．at ease |
. There are many mistakes in his essay, ______his failure.
| A．which results | B．leading to | C．led to | D．that led to |
. He regretted______ to the lecture the day before.
| A．not going | B．not to go | C．not have gone | D．to not going |
After a two-hour talk, she______ the truth of the report.
A. was persuaded B. was believed in
C. was convinced of D was advised
— Shall we go shopping in the Walking Street on Sunday?
—______.
| A．It’s your opinion | B．I don’t mind | C．It’s all up to you | D．That’s your decision |