--- Peter, you the window quickly, will you?
--- OK! Oh! The window broken.
| A．shut; is | B．will shut; has been |
| C．are shutting; was | D．have shut; has been |
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 |
The experts were doing their experiment in the lab, __________ what happened outside.
| A．didn't know | B．not knew |
| C．not knowing | D．having not known |
The old man stood by the window, __________ his eyes on the people playing in the park.
| A．fix | B．fixing |
| C．fixed | D．to fix |
If you are a man who always __________ to do everything, you are unlikely to achieve your goal.
| A．pretends | B．offers |
| C．manages | D．hesitates |