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
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
举一反三
- Jim has[u] [/u]useful book. [u] [/u]book is very interesting. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: the; A B: an; A C: a; The D: an; The
- —Is this your book, Alice? —Yes, it is [u] [/u] book. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: his B: her C: its D: my
- This book is worth [u] [/u] . 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: to read B: reads C: read D: reading
- 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