Sentence examples for become a big question mark from inspiring English sources

As Twitter's growth continues to stall and increasingly becomes an issue, Twitter CEO Jack Dorsey's double-time running both Twitter and Square has become a big question mark — and Dorsey says he's staying the course.

But whether it becomes a volume demand for an OS that's a big question mark for me".

"It's a big question mark.

But it's a big question mark".

"That is a big question mark.

But that's a big question mark.

"It's like a big question mark.

The House is a big question mark.

A big question mark was race.

There's a big question mark".

"There's a big question mark over your head".