问题

he nuclear crisis worsening in Iran,the world’s attention is fixed again on ________is called the Middle East
A:to serve
B:serving
C:having served
D:served
B:serving
C:having served
D:served
正确答案是:
同类题型
lot of work __________, our manager couldn’tspare time for a holiday.
middle school students, raising pet______ all day long is a sheer waste of time.
I felt surprised that anyone of his intelligencesuch an easy test
I was still sleeping when the fire ____, and then it spread quickly. [ ]
Though Shakespeare has long gone, his powerful ideas still undoubtedly ________ the western society.