1.They lost their way in the forest and made matters worse was night began to fall.
答案what;that
2.It is said Peter will have a chance to travel abroad next month.
答案that
3. the astronomers eat in space is we want to know.
答案How/What;what
4. he lost his new car upset him a lot.
答案That
5.I read about it in this book or that one.Does it matter it was?
答案which
6. answers the question correctly will be given a prize.
答案Whoever
7. he didn’t come yesterday is unknown.
答案Why
