If you really want yourself to be in good health, you must＿＿＿always＿＿＿so much.
| A．not； be smoking | B．not； have smoked |
| C．not； to smoke | D．be not； smoking |
—What are you going to do this weekend?
— . If time permits, I may go to Shanghai with my friends.
| A．It depends. | B．It doesn’t matter. |
| C．Forget it. | D．Don’t mention it. |
Little Johnny felt the bag, wondering what it ________ .
| A．collected | B．contained |
| C．consists | D．Saved |
His brother ___the army since 2012.
| A．joined | B．has joined |
| C．was in | D．has been in |
It is believed that life in the twenty-first century is much easier than ________ .
| A．that used to be | B．it is used to |
| C．it was used to | D．it used to be |
When _____ Chinese culture with other cultures, we often pay attention only to the differences without noticing the many similarities.
| A．compared | B．being compared |
| C．comparing | D．having compared |