I________making model rockets when I was a kid. It made my life more colorful.
A.took up B.grew up C.picked up D.thought up
Hangzhou ________ as the City of Silk. Tourists like shopping for silk there.
A. knows B. is known C. was known D. will be known
My mum didn’t allow me________the hole with too much soil.
A.filling B.fill C.filled D.to fill
The tiger is at the top of the food chain. It helps keep the number of other wild animals________.
A.in balance B.in seconds C.in total D.in common
—I want to buy a shirt. But I can’t afford expensive shirts.
— The shirts here are all very cheap. And the yellow one is________.
A.cheap B.cheaper C.the cheapest D.expensive
— Can you set up a time to give a talk about the Summer Place?
— Sorry, ________Bill________I have been there.
A.not only, but also B.either, or C.both, and D.neither, nor
