Question

76. 他坚持在案发时间他在另一个地方。

                                                                          .

77. 她真慷慨把大部分时间奉献给了慈善事业。

                                                                          .

78. 昨天当我在做家庭作业时，妈妈在做晚饭。

                                                                          .

79. 我不能决定是否向老师求助。

                                                                              .

80. 他宁愿保持沉默也不告诉我们真相。

                                                                              .

Answer 1

76. 他坚持在案发时间他在另一个地方。

He insists/insisted that he was at another place at the time of the crime .

          1               0.5                   0.5

77. 她真慷慨把大部分时间奉献给了慈善事业。

It’s generous of her to devote most of her time to charity .

       0.5     0.5               1

78. 昨天当我在做家庭作业时，妈妈在做晚饭。

Mum was cooking dinner while I was doing my homework yesterday .

             1                       1

79. 我不能决定是否向老师求助。

   I can’t decide whether to ask the teachers for help .

        0.5      0.5           1

I can’t decide whether/if I should/will ask the teacher for help .

        0.5       0.5                1

80. 他宁愿保持沉默也不告诉我们真相。

    He would rather keep silent than tell us the truth .

       0.5           0.5   0.5      0.5

He prefers/preferred keeping silent  to  telling us the truth .

         0.5              0.5     0.5       0.5

 He prefers/preferred  to keep silent  rather than  tell us the truth .