问题

You can’t be ____ when you camp _ a high altitude, ______ the air is thin.

A:enough careful; at; which
B:too careful; at; where
C:careful enough; on;at which
D:too careful; on; that

正确答案是：

同类题型

How long has the girl’s father ____

Can you tell me play with computers — When he was thirteen years old.

Xishui lies _____the southeast of Hubei Province and ____the south of Luotian.They are good neighbours.— The population of Xishui is much bigger than that of Luotian.

What ____ great fun we are having! I’ll never forget ____ Christmas like it.

Tom is Lily, both of whom are responsible for their students.