She devoted herself ______ to her research and it earned her a
good reputation in her field.
| A．strongly | B．extremely |
| C．entirely | D．freely |
______ my camera wasn’t working; there is no battery in it.
| A．No doubt | B．No wonder | C．No possibility | D．No way |
–Better get down to your work, Tom.
--_________.
| A．It’s my pleasure | B．Don’t mention it |
| C．Mind your own business | D．You’re welcome |
—Got your driving license?
—No. I _____ too busy to have enough practice, so I didn’t take the driving test last week.
| A．will be | B．am | C．have been | D．had been |
The conference was attended by more than 11,000 people, _____ it the largest UN climate change gathering ever held.
| A．making | B．to make | C．made | D．to be making |
________ help the people in the snowstorm in the South made him worried.
| A．Not known how to | B．Unknown what to do to |
| C．His knowing not how to | D．His not knowing how to |