The doctors in Beijing did all they______ to save Shao Zhanwei, mayor of Hangzhou, but he still died of heart attack at the age of 58.
We often go to school _______ 8:20 ________ the morning.
There is ___________ “s” and __________ “u” in _______word “student”.
–Could you tell me __________?
--- How was Jack last night? --- He was so ___________ that he fell ____________ quickly.
--- Help___________ to some fish, children. ---Thanks, Mrs Smith.