Lin Dan has become the best badminton player, he wanted to be.
| A．who | B．which | C．what | D．that |
--- Where is Jack? I can’t find him anywhere.
--- He ______ his homework upstairs.
| A．might have done | B．must have done | C．might be doing | D．must do |
—I’m sorry I broke the glass.
—_____.
| A．I see | B．No problem | C．Forget it | D．You’re welcome |
Saying “hello” to somebody today can _____ a new friend tomorrow.
| A．hand in | B．result in | C．lie in | D．lead in |
However _____ they are designed, pens should function as a tool to write with.
| A．differ | B．difference | C．different | D．differently |
Wouldn’t it be ______ wonderful world if all nations lived in ____ peace with one another?
| A．a ; / | B．the ; / | C．a; the | D．the; the |