In an interview Beckham admitted that he couldn’t ＿＿ his six-year-old son Brooklyn’s maths homework and had to turn to his former Spice Girls pop star wife Victoria to help out.

A．take out

B．work out

C．clear out

D．turn out

读图，完成下列题。

若图中丁地为极夜时，图中四地黑夜由长到短的正确排序是（）

A.甲>乙>丙>丁

B.乙>丙>甲>丁

C.丙>乙>丁>甲

D.丁>丙>乙>甲