He found ____ very difficult _____ the problem.
| A．that; to work out | B．this; working out |
| C．himself; work out | D．it; to work out |
He couldn’t even afford a cup of tea because he had ______ money left．
| A．any | B．no | C．a little | D．few |
We went to Quanjude to eat Beijing Duck ______ we arrived in Beijing．
| A．as soon as | B．since |
| C．until | D．while |
Don’t you know it’s ______ useful book for English learners?
| A．a | B．an | C．the | D．／ |
The TV show, Where are we going, Dad?，is one of the ______ programs in China in 2013．
| A．famous | B．more famous |
| C．most famous | D．best famous |
Mr．Wang is a nice teacher．He often helps his students with ______ physics after school．
| A．them | B．their | C．theirs | D．his |