It has been proved __________ eating vegetables in childhood helps to protect you against serious illnesses in later life.
| A．if | B．that | C．when | D．because |
He must have known the truth yesterday, _________?
| A．haven’t you | B．didn’t you | C．have you | D．did you |
To our great surprise, we got _____ people to attend the conference as we expected.
| A．twice as many | B．twice many |
| C．twice many as | D．as twice many |
_____ all our efforts to save the school, the authorities decided to close it.
| A．In spite of | B．In case of |
| C．In need of | D．In terms of |
----You forgot your purse when you went out.
------Good heavens, _________
| A．so did I | B．so I did | C．I did so | D．I so did. |
_____ to make a speech, he said he would be glad to.
| A．When asked | B．When asking |
| C．When he was asking | D．When to ask |