I assume that you are acquainted ________ this subject since you are responsible ________ writing the accompanying materials. 

Choose the word or phrase that can substitute for the underlined word.

Walking and swimming are the two most popular sporting activities undertaken by men and women.

Choose the word or phrase that can substitute for the underlined word.

My other pursuits include listening to music, reading and gardening.

Choose the word or phrase that can substitute for the underlined word.

I bought the ring as a memento of Greek.

Choose the word or phrase that can substitute for the underlined word.

His recreations include golf, football and shooting. 

Choose the word or phrase that can substitute for the underlined word.

In Britain, the most common leisure activities are home-based. 

Jim invited Helen to visit his gardens:

- Helen: "I love your gardens. The plants are well taken care of!"

- Jim : “Thanks. Yes, I suppose I've always ____.”

Her outgoing character contrasts ______ with that of her sister.