The problem of carbon emission ____ at Copenhagen Summit has aroused the public’s wide concern.
A. discussed B. having been discussed
C. being discussed D. to be discussed
Wife ____ a big dinner when Husband was aware of their eighth wedding anniversary that day.
A. was still preparing B. had hardly prepared
C. did carefully prepare D. would eagerly prepare
Our community appears more beautiful with green grass and colourful flowers ____ here and there.
A. grow B. to grow C. growing D. having grown
As is known to us all, the opening ceremony of the Shanghai World Expo, ____ theme is “Better City, Better Life”, will begin on May 1st, 2010.
A. which B. its C. that D. whose
Such great achievements ____ so far that many friends abroad can hardly believe that.
A. has China made B. China has made
C. does China make D. are made in China
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .
A. mustn’t be B. may not be
C. can’t be D. won’t be
