It is generally believed that teaching is ___________it is a science.
| A． an art much as | B．much an art as | C．as an art much as | D．as much an art as |
（届江苏省扬州中学高三4月阶段测试英语试卷）
________, Mr. Wells is scarcely in sympathy with the working class.
| A．Although he is a socialist | B．Even if he is a socialist |
| C．Being a socialist | D．Since he is a socialist |
（2014届山东省桓台第二中学高三4月检测考试英语试卷）
It suddenly occurred to me I hadn’t locked my door．
| A．which | B．where | C．that | D．whether |
（届陕西省西工大附中高三第六次模拟英语试卷）
—Mom, can I go out and play with my friends now?
—No, honey, you can’t _____ you haven’t recovered from the knee injury.
| A．until | B．before | C．as | D．unless |
（届四川省成都七中高三三诊模拟英语试卷）
With a special train ticket, you can travel______ you’d like to go in England for just over 100 pounds.
| A．what | B．in which | C．where | D．which |
He had his camera ready _____ he saw something that would make a good picture.
| A．even if | B．if only | C．in case | D．so that |