Some experts are warning that the step the US government has taken to deal with the current crisis is ______ of much risk.
I have offered to paint the house ______ a week’s accommodation (居住).
_______ well prepared you are, you still need a lot of luck in mountain climbing.
We had to wait half an hour _____ we had already booked a table.
Tom was thinking about how to explain to the teacher why he was late for class, when a good idea ______ to him.
Parents feel they don’t have the ability to influence children’s decisions ______ children feel their parents’ goals are hard to achieve.