We don’t have enough nurses to look after patients．At least ___ nurses are needed．
| A．ten another | B．more ten | C．other ten | D．another ten |
—What did you see？
—I saw some boys________on the playground when I walked past．
| A．sat | B．sitting | C．to sit | D．to sitting |
—________？
—She has a sore back．
| A．What is she |
| B．What does she look like |
| C．What’s the matter with her |
| D．What does she do |
They study so________that they easily pass the exam．
| A．hard |
| B．harder |
| C．hardly |
| D．hardest |
She realized________English well．
| A．the importance of learn |
| B．the important of learn |
| C．the importance of learning |
| D．the important of learning |
He seems________out of trouble．
| A．to get |
| B．getting |
| C．get |
| D．to getting |