1。There are many people downstairs. What do you think ______?
A to happen B happening C is happened D has happend
2。Nobody kowns_______.
A how our future will look like B what our future will be like
3。-----I an leaving now ------________you turn off the lights.
A To make sure B Make sure C Made sure D Making sure
另外问下 people 是可数名词吗?
还有a lot of 与lots of 后加可数还是不可数名词