--- Are you sure you have to ? It's been very late. --- I don't know _____ I can do it if not now.
This hotel is the highest building in the city, from _______ top you can enjoy a good view of our city.
Knowing what colors look good _______ your skin is of great importance when you buy clothes.
_______, Sharon couldn’t find her lost wallet.
In spite of his disappointment, he _______ a weak smile.
Ms Liu saw a fashion dress in a shop which set her heart racing. However, its price was far beyond her _______.