Chemical pollution will bring about a threat to agriculture and food chain, and ________ to human health.
| A．frequently | B．significantly | C．steadily | D．consequently |
Though it is the first time they have met, they talked as if they _____ friends for many years.
| A．are | B．were | C．had been | D．have been |
A clean environment can help the city bid for the Olympics, which ______ will promote its economic development.
| A．in turn | B．in fact | C．in return | D．in nature |
It’s quite _____ of beginners to forget to use an article before a noun.
| A．ordinary | B．usual | C．regular | D．typical |
Qingdao is _____ most beautiful coastal city and I think I’ll go there for _____ second time.
| A．a; a | B．the; a | C．the; the | D．the; a |
—How do you find your new pen?
—Wow, _____. It’s really worth the money I paid.
| A．quite by chance | B．it lies in my drawer |
| C．it’s well written | D．it writes very well |