.Having a trip abroad is certainly good for the old couple, but it remains ___ whether they will enjoy it.
_____ the group guide, all teams have cookers and porters.
Marco, ____, was amazed by how beautiful and powerful China was.
We’ll teach you survival skills and you’ll learn how to ____ a fire and build your own shelter.
I’ve designed five or six different cars_____.
How can you persuade them ___ the advantages of solar cars?