问题

The United Nations ________ an international organization that tries to find peaceful solutions to world problems.[ ]

A: is
B: are
C: was
D: were

正确答案是：

同类题型

The great success of this program has been largely_____ the support given by the 10 local business men.

Mike hurt his leg while playing footballyesterday.— _______ .

Who is the woman sitting __________ the students in the photo—My head teacher. She took the photo with all my classmates last year.

Scientists are convinced _____the positive effect of laughter _____physical and mental health

up, kids! The school bus _______ for us!