Do you remember ____when you heard about the important event?
Yes, I do
| A．what were you doing | B．what you were doing |
| C．what are you doing | D．what you are doing |
You must be very to hear suchnews,boys.
| A．surprised; surprised. | B．surprised; surprising. |
| C．surprising; surprising. | D．surprising, surprised. |
He foundvery difficultthe math problem.
| A．that；to solve | B．this；solving |
| C．it；to solve | D．it；solving |
-- She has never been to Hong Kong, ______she? -- ______, so she knows little about it.
| A．has, No | B．hasn’t, Yes |
| C．has, Yes | D．hasn’t, No |
---You look a bit worried .
----It’s raining , but I ________my umbrella at home .
| A．took | B．brought |
| C．left | D．forgot |
The life we were used to ____________greatly since 2008.
| A．has changed | B．changing |
| C．change | D．have changed |