The schoolboy regretted _______ after he didn't pass his exam.
She smiled to the people around but___looked straight ahead, getting hold of her son’s hand.
He’d like to sleep with the window ____ at night.
—— How did you find your visit to the museum? —— I thoroughly enjoyed it. It was____interesting than I had expected.
Qingdao is _______ beautiful city in summer.
When you drive home, you can’t be_______careful.