The snake lives ________ grassland.
| A．on | B．in | C．at | D．to |
Nobody except Tom and Millie ____ that park before. Only they can be our guides.
| A．have been to | B．has been to |
| C．has gone to | D．have gone to |
---When will the plane ___________?
--- In an hour.
| A．reach | B．arrive in | C．get to | D．arrive |
The twins look the same, but they are really different.
| A．at a time | B．from time to time |
| C．by the way | D．in some ways |
---Have you ever watched You who came from the star?
---________. I plan to watch it on the Internet this Sunday.
| A．Ever | B．Never | C．Yet | D．Already |
Mary had few close friends. So she didn’t know ________ about the problems.
| A．who to talk | B．who to talk to |
| C．who to say | D．what to talk |