[u] [/u] the animals [u] [/u] our duty.
未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181}
A: To protect; are
B: Protecting; are
C: To protect; is
D: To protecting; is
未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181}
A: To protect; are
B: Protecting; are
C: To protect; is
D: To protecting; is
举一反三
- This is [u] [/u] key and that is [u]____[/u] English book. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: a ; a B: an ; an C: a ; an D: an ; a
- Few plants or animals [u] [/u] in the desert. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案', 'isMemberControl': 0, 'type': 181} A: generation B: thrive C: prevent
- The number of the students in our school [u] [/u] about 1000 and a number of them [u] [/u] boys. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: are; is B: is; is C: is; are
- These [u] [/u] my friends and that [u] [/u] my sister. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: is; are B: are; is C: is; is D: are; are
- Seeing [u] [/u] believing. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: be B: are C: was D: is