20. _________raining hard for 3 hours without stopping.
21.
| A．It is | B．It was | C．It has been | D．It had been |
The new dictionaries are very useful. They _______ well and _______ already.
| A．sell; have been sold out |
| B．sold; had sold out |
| C．sell; sell out |
| D．are sold; have been sold out |
Every possible means to save the future of the baseball player so far.
| A．was tried | B．were tried | C．have been tried | D．has been tried |
He looked very confident and calm during the test, but he was extremely nervous.
| A．in trouble | B．in danger | C．in reality | D．in surprise |
Many people thought highly of what he said, but , I thought he just showed himself off.
| A．personally | B．generally | C．especially | D．specially |
Most of his mistakes _____ out of his nervousness, I am sure.
| A．rose | B．raised | C．arose | D．lifted |