After he retired from office，Royers________painting for a while，but soon lost interest.
| A．took up | B．saved up |
| C．kept up | D．drew up |
Only when you get a special permit can you have the ___ of interviewing the prime minister of China.
| A．advantage | B．possibility | C．preference | D．privilege |
He treasured a notebook in which ______ his bank account password and his friend’s addresses.
| A．wrote | B．were recorded | C．was written | D．wrote |
You can only be sure of ____ you have at present; you cannot be sure of something ____ you might get in the future.
| A．that, what | B．what, / | C．what, which | D．/ , that |
I went along the beach thinking of nothing ____.
| A．in brief | B．in doubt | C．in harmony | D．in particular |
The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.
| A．studying | B．studied | C．to study | D．to be studied |