—The experiment is of particular importance.

—I see．We will carry on with it ________ we can get enough money.

A．unless       B．though         C．whether           D．until

The experiment is of particular importance.

—I see. We will carry on with it ________ we can get enough money.

—The experiment is of particular importance.

—I see. We will carry on with it          we can get enough money.

A．unless          B．though        C．whether          D．until

—The experiment is of particular importance.

—I see. We will carry on with it ________ we can get enough money.
A．unless     B．until　 C．though　　　 D．whether

The experiment is of particular importance.
—I see. We will carry on with it ________ we can get enough money.