The country has already sent up three unmanned spacecraft, the most recent ________ at the end of last March.
| A．has been launched | B．having been launched |
| C．being launched | D．to be launched |
Sit down, Emma. You will only make yourself more tired, on
you feet.
| A．to keep | B．keeping | C．having kept | D．to have kept |
—Bob has gone to Califonia.
—Oh, can you tell me when he ?
| A．has left | B．left | C．is leaving | D．would leave |
The shocking news made me realizeterrible problems we would face.
| A．what | B．how | C．that | D．why |
Maybe if I sicence, and not literature then, I would be able to give you more help.
| A．studied | B．would study | C．had studied | D．was studying |
volleyball is her main focus, she’s also great at basketball.
| A．Since | B．Once | C．Unless | D．While |