It remains _______ whether Tom will be fit enough to play in the finals.
He is one of those who ______ very hard.
The parents as well as the baby ______ in high spirits.
There are ten boxes on the desk and the ______ is yours.
What ______ heavy snow. Let's go out for a walk in ______ snow, shall we?
It is pleasant to play ______ game of ______ table tennis ______ summer afternoon.