问题

ys mobile internet devices are pushing up demands for online education, which makes people see it as one of the most____ new market.

A:demanding
B:confidential
C:promising
D:controversial;

正确答案是：

同类题型

The patient was ___of losing his life and had to be operated on at once

These books were really good, so she couldn’t .

n, will you please go and empty the rubbish — ______

The boys and girls follow Yao Ming all thetime.

been working with Lily for years,and never before her so serious!