As we all know, _______ mankind has realized the walk in ______ space.

   A. the; the                    B. /; the                               C. /; /                                    D. the; /

Some students, hoping to get a high score, are _______ about the results of coming exam.

   A. absurd                    B. guilty                               C. anxious                           D. puzzling

All cases ______ children are dealt with in a special children’s court.

   A. concerned               B. concerning                     C. concern                           D. to concern

His mother could do nothing but _______ for the doctor to arrive.

   A. to wait                     B. waiting                            C. waited                             D. wait

 — Do you know the reason why the Whites got divorced?

   — No, they haven’t quarreled with each other since they got married. _______, they broke up finally.

   A. Somehow                B. Anyhow                           C. Anyway                           D. Somewhat

If you live near the lake, ____ are that you will hear birds singing to welcome the new day.

   A. possibilities             B. situations                       C. chances                          D. opportunities

 In such hot weather, the new plant will have to be protected from the sun if they ______.

   A. are surviving           B. survives                          C. are to survive                D. have survived

The reason ______ most Chinese have healthy white teeth is ______ they eat a healthy diet.

   A. why; that                 B. why; because                C. that; that                       D. for; that

 Unfortunately, the whole village was ________ by the earthquake.

   A. died away                B. wiped away                   C. died out                          D. wiped out

The boy was beaten by his stepmother, tears _______ down his cheeks quietly.

   A. flew                           B. flowing                            C. flown                               D. to flow