【題目】The Smiths enjoy______ photos. They always go out with their cameras .

【題目】__________he was busy, _________he often helped us with our studies.

【題目】Four and__half hours of discussion took us up to midnight, and____ break for cheese, chocolate and tea with sugar.

【題目】Bad luck! Little Jenny cut (she) with a knife yesterday.

【題目】Han Mei , _____is Susan.

【題目】The traffic signs warn people after drinking.

【題目】A spaceship flies at about eleven kilometers _______ second.

【題目】At school, we are taught knowledge how to behave well.

【題目】There are so many (passenger) on the bus, so it's really crowded.