Please make sure that no details _____ before you deliver a speech

st have waited here for a long time,___________you

The suggestion he _______ is that all thestudents ______ the orphan.

He _____ me ＄ 50 for my MP3Shall I seel it—Why notYour MP3 is out of date and itisn’t worth so much

________ a certain doubt among the people as to the practical value of the project