In summer, it's a good idea to carry some .... in case there are mosquitoes.
insect repellent
It's very dark outside. You should take your ...
torch
Explorers usually use a ... to navigate and find their way.
compass
You use this to carry your equipment.
backpack
It's a good idea to take a ... in case there is an accident.
first-aid kit
Put some ... on or you'll get burnt under the sun.
sunscreen
Put on your ... It's raining.
waterproof jacket
You need this to see things at a long distance.
binoculars
You can sleep in a ...
tent / sleeping bag
I need some ... to fix my bicycle.
tools