My brother would like to buy a good watch but_______ was available from that shop.

Now China is fighting against illegal cooking oil（地沟油）, a kind of waste oil _____can cause a lot of illness.

We don’t have enough nurses to look after the patients. At least______ are needed.

The shopkeeper said they had sold out the shoes ____ your size. [ ]

Kunming is l ,800 kilometres Nanjing.[ ]