-- What's the skirt made of? -- It soft.. Maybe it's silk.
You will have a better chance _____ passing your exams if you work harder.
— Where is your father now? — I’m not sure. He be in the kitchen.
It’s difficult to live in a foreign country, if you can’t speak foreign languages.
—Can you finish the work in an hour? —____________.
There are ________ books in the National Library.