We need some____ advice on the problembecause none of us knows anything about it.[ ]

The mouse saw the cat andquickly a minute ago.

Was it by cutting down staff _____ she saved the company— No, it was by improving work efficiency.

The car________to you for 2 months and please remember it needs oiling every month. [ ]

Why are you playing computer games again， Jim————Because I ______my homework and I want to relax.