It was not until the subprime loan crisis(次贷危机) ____ great damage to the American financial system that Americans ____ the severity of the situation.
The shop will be closed for repairs ________ further notice.
She must be looking forward as much to his return as he himself is to _______ her.
You can’t avoid _____ your job tomorrow ______ you work hard today.
After two years’ research, we now have a _______ better understanding of the disease.
Can you imagine the great difficulty he had ________ his driving test last week?