They ________to enter the building by the back door; however, the ba-考呗网题库移动版

单选题 They ________to enter the building by the back door; however, the back door was locked．

A．weren't supposed
B．wouldn't be supposed
C．were supposed
D．would be supposed

参考答案C

解析: C。本来以为他们会从后门进来的，但是后门锁上了。
考查动词时态。be supposedto do sth．为固定搭配，意为“应该，被期望”。

单选题 There was a ．knock at the door．It was the second time someone ________me that evening．

A．had interruped
B．would have interrupted
C．to have interrupted
D．to interrupt

单选题 Our modem civilization must not be thought of as ________in a short period of time．

A．being created
B．to have been created
C．having been created
D．to be created

单选题 When Jane fell offthe bike, the other children______

A．were not able to help laughter
B．could not help but laughing
C．could not help laughing
D．could not help to laugh