Is that Jack speaking? —Sorry, he _______ inHe _______ back in half an hour[ ]

The captain ____ the crews beforehim, telling them to get ready for thesailing.[ ]

The charity sale our school organizes every year hastaught us much that we would never have _____ learned in class

“Mike is often absent from class” “Tell him he __answer for it if he goes on behaving like that”

I will go to Hangzhou sometime next week. Perhaps I _____visit you at that time.