, and the problem will be worked out.
Many countries are now setting up national parks __________ animals and plants can be protected.
A bank is the place __________ they lend you an umbrella in fair weather and ask for it back when it begins to rain.
Whatever is left over may be put into the refrigerator,__________ it will keep for two or three weeks.
Mary was much kinder to Jack than she was to the others,__________,of course, made all the others upset.
The children,__________ had played the whole day long, were worn out.