Air pollution, together with littering, ____ many problems in our large industrial cities today.
The girl ________to figure out the boy’s attitude towards her but without success.
It is ridiculous of you to be afraid of your own ________,which follows everywhere you go when there is light.
It is what you do ________ what you say that matters.
Anyone who are in ________ of weapons without permission are considered lawbreaking.
It rained that day and ________ the basketball game was called off.