Would you please tell me the quickest way _______ English well?
| A．to learn |
| B．of learning |
| C．how to learn |
| D．both A and B |
There was something wrong with the network，or the e-mail____ earlier.
| A．could have been sent | B．might be sent |
| C．need have been sent | D．must be sent |
_______ she was invited to the ball made her very happy.
| A．Whether | B．That | C．Because | D．What |
She told us what she bought yesterday ________ a few apples and some clothing.
| A．is | B．are | C．was | D．were |
It’s said to be a case of murder_______ the children were used by adults.
| A．when | B．where | C．which | D．that |
I had meant to meet you at the airport this morning but I was too busy for I_______ a report.
| A．wrote | B．was writing | C．have written | D．had written |