对下列各句中的加点字解释不正确的是

What do you think of Harry, our new roommate—– I am not sure, but he is always asking _____questions.

192. You are only allowed to take less than30 kilograms of carry-on__________onto a plane.

It is the fact _______ Jane doesn’t know Jolin is a popular singer ____ surprises us all.

Of the following four, is in June.