-- Has your friend completed his design?-- Not yet. He ________ on it last night.
| A．worked | B．was working |
| C．has worked | D．is working |
Through the stories behind the idioms，we would be able to fully____China′s culture，history and tradition．（ ）
A．understandB．searchC．compareD．imagine
While watching the film yesterday，I couldn't stop laughing at some ____moments．（ ）
A．humorousB．challenging
C．dangerousD．surprising
US scientist Edward T．Hall said that in a conversation between two people，65% of____is done through body language．（ ）
A．applicationB．pronunciation
C．introductionD．communication
According to the notice，guests at this hotel____use the sports center at no extra cost．（ ）
A．canB．shouldC．mustD．need
On April 24，Xie Wenjun raced to gold in the____110﹣meter hurdles at the Asian Athletics Championships in Qatar．（ ）
A．manB．menC．men'sD．mens'