问题

Today, we’ll discuss a number of cases _______ parents have much difficulty in communicating with their children.

A:where
B:as
C:why
D:which

正确答案是：

同类题型

____ gets well prepared will pass the exam easily

Fu Mingxia ______ the Sydney Olympic Games, where she ______ all the other competitors and got the gold medal in the women’s 10-metre platform. [ ]

Scientists can make the robots __________.

1—What’s your favoritesubject?—________because I am interested in numbers.

In order to stop poverty,the World Bank has ___its focus to providing technical assistance and long-term loans to developing countries.