The U.S. first lady Michelle Obama, arrived in China on March 20, 2014 for _______ six-day visit, focusing on _______ importance of cultural exchanges.

Have you seen Tom recently? I wonder ______ with his students.

nderson is popular with his students, for heis kind, strict and knowledgeable.— No wonder he has such a good_________.

Can I _______ your new watch –Sure.

Have you finished the work yet— Not yet. I need two more days.