______ at the door before entering please.
A．Knocked B．Knock C．Knocking D．To knock
Although Linda tried hard in the exam, she did ______ than her brother.
A．more badly B．much better C．much badly D．much worse
Have you read the book ____ I lent to you?
A．that B．whom C．when D．whose
—______ can we get the photos?
—In two days.
A．How long B．How often C．How much D．How soon
The flowers were so lovely that they ______ in no time.
A．sold B．had been sold C．were sold D．would sell
My cousin went to Canada two yours ago. He ______ there for a few months and then went to America.
A．worked B．would work C．would be working D．has been working
