The number of wild animals ___ getting smaller and smaller.

23 A man is being questioned in relation to the________ murder last night

.—Do you need any help, Lucy? —Yes. The job is ____ I could do myself.

Some students find certain grammar points and structures very difficult; _____, teachers need a reliable source of practice material to get these points across effectively.[ ]

There_____ be any difficulty passing the driving test, since you have practised a lot at the driving school.[ ]