The experiment shows that proper amounts of exercise, if regularly, can improve our health.
| A．being carried out | B．carried out |
| C．carrying out | D．to carry out |
“How did the robber get in?” “______ an open window on the first floor.”
| A．Past | B．From |
| C．Over | D．Through |
_______ reading the letter, what has he done?
| A．Because of | B．Except |
| C．Besides | D．But for |
The lift in that tall building went wrong and got trapped _____ floors. People in it had no way to get out.
| A．in | B．between |
| C．among | D．on |
In the west, people make _______ a rule to send Christmas present to their relatives and friends.
| A．this | B．that |
| C．it | D．the following |
“Look at that lady on the stage. She’s already forty.” “You are joking. She doesn’t look ________.”
| A．so | B．it |
| C．that | D．this |