—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
_______ finish their task ahead of time, the students worked harder and harder.
They became good friends during the war, and since then their lifelong friendship has _______ tests of life and death.
It was on March 11,2011 ________ a strong earthquake hit Sendai, Japan.
It was the first time that I ______ Jackson’s songs.
--Don’t you think that was a ______ night? --Yes, we were almost ______ to death by the shaking of the earth.