Facing the dangerous situation, he was completely ____________.
| A．at loss | B．at a loss |
| C．out of order | D．out of sight |
—What is the population of China?
—China has____population of l．3 billion．
A．the；the B．a；a C．a；the D the；a
This is _____photo of ___father’s．
| A．a；my | B．a；／ | C．the；the | D．／；／ |
Things of_____ kind come together；people of____kind fall into__same group
A．the；the；the B．a；a；the
C．the；the；a D a；a；a
Polar bears live mostly on______ sea ice, which they use as ______platform for hunting seals.
| A．a; a | B．a; the | C．不填; a | D．the; 不填 |
Shelly had prepared carefully for her English examination so that she could be sure of passing it on her first______．
| A．intention | B．attempt | C．purpose | D．desire |