语法选择
Two astronauts, Liz and Gus, are lost on Planet. Their captain Troy1to them from the mother ship.
Hello, Liz and Gus. Listen2. This is very important. We can't land the mother ship in the forest3the trees. Now look at your map. Can you see Square B4? Your spaceship is there. There's a river near you in Square C4. The river goes4a lake in B2, C2, and D2. There5some mountains next to the lake in El, E2 and E3. We6the mother ship in Square Dl.7that Square D1 is our landing site. We can't land in A1, B1, C1 or A2, because there's a desert there. And don't go to D5 or E5 since a town is there.
We're going to land the day after tomorrow. You must get to the landing site in two days. Then we must take off and8.
You must leave most things behind. You can only carry five things. I hope you make9! Oh, one more10. Remember that you mustn't hurt or kill anyone on this planet. Good luck!