I don't know if you noticed their behaviors or not, but we______.
| A．were | B． have | C． had | D． did |
He didn't come on time, __________ it impossible for us to hold such an important party.
| A．made | B．having made |
| C．to make | D．making |
Although the novel isn't popular among adults, it __________ the youth, especially boys.
| A．refers to | B．appeals to |
| C．results in | D．deals with |
Jenny was shaking and crying at the corner of the street as if she __________ frightened by somebody.
| A．is | B．has been |
| C．had been | D．would |
A healthy lifestyle is often considered to be __________ exercise, mood and diet, and so on.
| A．associated with | B．associated in |
| C．connected for | D．related at |
Jack wasn't saying anything, but the teacher smiled at him __________ he had done something very clever.
| A．as if | B．in case |
| C．while | D．though |