3 . At least 20 people lost their lives in the air crash and, according to the hospital, ___________was the pilot, who died soon after he was sent to the hospital.

A．among which

B．among whom

C．among them

D．among what

4 . Grass skiing is a rising form of entertainment, popular with young people, ___________focus is on the adventurous and enjoyable form of a sports activity.

A．who

B．when

C．where

D．whose

5 . Language learners are encouraged to do ________ they are instructed to do, ________ will enhance their understanding of the language.

A．what; that

B．all what; which

C．all that; that

D．what; which

6 . The first time ________ she led small groups of people on guided hunts, she taught them how to kill the insect, ________ has spread to much of Florida.

A．when; that

B．/;who

C．when; which

D．/; which

7 . In high school, students will experience various emotions, challenges, and friendships, ________ shape their memorable journey.

A．all of that

B．all of what

C．all of which

D．all

8 . Professor Johnson, ________ I have long admired, is to visit our university next week.

A．which

B．who

C．that

D．he

10 . Research confirms that restless children are more easy-going when there are animals around, ________ company they tend to calm down more easily.

A．with their

B．without their

C．with whose

D．without whose