—Where are the papers for the Smith project?

—They are in the folder ________ “S”．

A．marking B．marked

C．to be marked D．to mark

I'm just getting out of the city for a few days ________ some space and clear my head.

A．gotten B．getting

C．to get D．having gotten

With the audience ________ at her, the little girl felt nervous on the stage.

A．staring B．to stare

C．stare D．stared

________ by strong snowstorms, the area faced severe water and electricity shortage.

A．Struck B．Having struck

C．Striking D．Be struck

I'd rather have a room of my own, however small it is, than ________ one with others.

A．to share B．sharing

C．to have shared D．share

Most of the guests ________ to the wedding last week were his classmates and friends.

A．having been invited B．to be invited

C．being invited D．invited

—What in the world put you in a really bad mood?

—________ in the traffic for hours.

A．Stuck B．Being stuck

C．To be stuck D．sticking

The gas price keeps rising, ________ an average of 7.7 yuan per liter this month.

A．hit B．to hit

C．hitting D．hits

The old couple, ________ in the small village for years, can tell the names of all the villagers.

A．living B．lived

C．having lived D．to have lived

In my opinion, keeping dogs well ________ up is advisable for dog owners.

A．to tie B．being tied

C．tied D．to be tied