does the sign over there read—"No person_______ smoke or carry alighted cigarette, cigar or pipe in this area．"
Your book looks newer than _______.
The welldressed lady was caught stealing in the fashion shop. Strangely enough，she ________have done such a thing.
Jenny, will you please _______ my dog for three days— Yes, of course.
Many experts have raised doubts about ____ it is right to judge teachers’ performance on students’ test scores. [ ]
