The train CRH380A, _____ trial operation on the Shanghai-Hangzhou high-speed railway, set a speed record of 416.6 kilometers per hour. [ ]

______you I owe a thousand apologies________ having doubted your ability.

It is difficult to imagine his_____________ the decision without any consideration.

Did Jack come back early last night? —YesIt was not yet eight o’clock ______ he arrived home[ ]

Did Zhou Libo say anything that ______ you in Mr.Zhou Live Show —Not really. Actually I slept through hisperformance.