I can still remember ___ for the first time by the teacher when I was in Grade One.
| A．being praised | B．praising | C．having praised | D．to be praised |
________ 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 |
Three million tons of coal ______ every year in the city.
| A．is exploited |
| B．are exploited |
| C．had exploited |
| D．have exploited |