1. She has a ... selection of shoes but she will only bring some necessary pairs for her trip
a. stalagmite
b. full board
c. varied
2. you can see a lot of beautiful ... in Son Dong Cave in Viet Nam
a. stalagmite
b. round trip
c. stimulating
3. there was a ... over the departure time of the journey, so we all came early
a. pyramind
b. mix-up
c. one-way ticket
