— What are you doing this Saturday?
— I’m not sure, but I go to the Rolling Stones concert
| A．must |
| B．would |
| C．should |
| D．might |
The child, who has a gift for sports, might make a first-class tennis player if given chances to develop her ______.
| A．courage | B．habit | C．potential | D．sense |
---Did Jack come back early last night?
---Yes, it was at eight o’clock_____ he arrived home.
| A．before | B．when | C．that | D．until |
If you insist on driving like this, you will have to suffer the ____ sooner or later.
| A．causes | B．consequences | C．exchanges | D．achievements |
He did well in the examination. He _____ hard at his lessons..
| A．must have worked | B．can have worked |
| C．will have worked | D．has worked |
No one knows exactly when our ancestors started talking, but new evidence suggests that____ might have happened a long time ago.
| A．which | B．what | C．it | D．they |