Professor Tang didn’t give us a speech today．It was he had a traffic accident on the way to school．
| A．that | B．when | C．why | D．because |
What the children in the mountain village need ________ good books.
| A．is |
| B．are |
| C．have |
| D．has |
________ either of your parents come to see you recently?
| A．Have |
| B．Had |
| C．Has |
| D．Is |
Both rice and wheat _____ grown in our country.
| A．is |
| B．are |
| C．was |
| D．were |
Mathematics _______ the language of science.
| A．are |
| B．are going to be |
| C．is |
| D．is to be |
Stories of the Long March _______ popular with the young people now.
| A．is |
| B．was |
| C．are |
| D．were |