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 |
Words failed to ________ my feelings the moment I saw my long-lost sister.
A.control | B.convey | C.exchange | D.affect |
Do you know how much time and effort they devoted________ such a complicated project?
A.to complete | B.completed | C.completing | D.to completing |
When Helen saw his tutor nod ________ to her, she calmed down and went on with her performance.
A.encouragingly | B.amazingly | C.interestingly | D.astonishingly |
Never before________ seen a girl who can swim as fast as Ye Shiwen.
A.had we | B.we had | C.have we | D.we have |
English is difficult________. Nobody can learn to use it in a few minutes.
A.learning | B.to be learned | C.learned | D.to learn |