Do you know how long ________ —-I’m sorry I don’t know.

Thanks a lot helping me my English.

declared that it ______byfast-spreading H1V1, which ____other countries nearby.

Did Linda see the traffic accident?—No，no sooner ________ than it happened.　　　　　　　　　　　　　　　　　　

“Things________never come again！” I couldn’t helptalking to myself.