有关英语的2道题.1、It was discovered (that they were endangered) in 1972.(对括了括号的部分提问)_____ _____ _____ in 1972?2、There used to be a lot of manatees.(改为否定句)There _____ _____ to be a lot of manatees.

问题描述:

有关英语的2道题.
1、It was discovered (that they were endangered) in 1972.(对括了括号的部分提问)
_____ _____ _____ in 1972?
2、There used to be a lot of manatees.(改为否定句)
There _____ _____ to be a lot of manatees.

What was discovered
used not

1 what was discovered
2 didn't use