Since it will take years to know the effect of genetically modified food, it’s more sensible to give it a second thought before we eat it, it?
| A．isn’t | B．is | C．won’t | D．will |
213. The PLA men ________ten miles along the road for the flood-stricken area.
| A．went | B．flew | C．marched | D．Marching |
212. We must make sure that all the boxes should__________the owners’ names.
| A．write | B．be written | C．mark with | D．be marked with |
211. Though three football players of the opposite sideto prevent Robert from kicking the ball, he still ______ to shoot the ball into the goal.
| A．tried; managed | B．managed; tried |
| C．tried; tried | D．managed; managed |
210. Being a student, you should _____ full use of your time to study each day.
| A．take | B．refer | C．make | D．Settle |
209. The world is________seven continents and four oceans. They are: Asia, Europe, North America, South America, Africa, Oceania and the Antarctica; the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and the Arctic.
| A．made up of | B．made out of | C．made from | D．made in |