9. 
The flowers were so lovely that they ______ out in no time.
| A．sold | B．had sold | C．were sold | D．had been sold |
--- How long ___ in Shanghai? --- For two weeks. I’m going to visit some schools in Shanghai.
| A．did you stay | B．have you stayed | C．are you staying | D．do you stay |
Do you know how much that _____?
| A．adds | B．adds up | C．adds to | D．adds up to |
With his mother’s good care, the boy is _____ recovering from his heavy cold.
| A．frequently | B．actually | C．fluently | D．gradually |
She was grateful _____ George _____ all _____he had done.
| A．to; for; that | B．to; for; what | C．for; to; that | D．for; to; what |
I asked my boss for a month’s holiday and, _____, she agreed.
| A．what’s more | B．that is to say | C．believe it or not | D．in other words |