Opening the door, Mrs．Summers found family of cats shut in the bathroom．
A．a; 不填 B．a; the C．the; 不填 D．the; the
We the top of the mountain but for this awful weather．It rained all day．
A．will reach B．would reach C．have reached D．would have reached
we go there by train or by ship makes no difference．The time and the fees are the same．
A．Which B．How C．Whether D．Why
their final medical check, the astronauts boarded their spacecraft．
A．Received B．Being received C．To receive D．Having received
In time we reached a stage we had more young readers than old ones．
A．where B．how C．who D．what
her emotion, she buried her face in her hands．
A．Controlled B．To control C．Being controlled D．Having controlled
