September 11, 2001 is the day ______ we will never forget.
--I don't think you can manage it. ----That ____!
Is this the first time that you ___ late?
--You look so pale.What trouble you? ----I ___ my dead mother.
Pardon? I ___ quite catch you.
On the ground on some hay, ___ a peasant boy of not more than seventeen. A, lie B. lying C. lay D. laid