— What's the matter with the man hanging his head there?— Well, if you _____ know, he was caught stealing my bike.
Mum hates ______ when anyone knocks her up during the lunch break.
There’s nothing new about his bad memory. So I wasn’t surprised ______ I heard he’d left his bag on the bus.
. Customers’ demands plus his personal interest ______ the idea of his new design.
Tim’s brown hair, dark glasses and the manner of walking alarmed the guards. That’s why he ______ closely.
Mo Yan’s Nobel Prize is likely to make the world go ______ about Chinese literature.