There are five pairs, but I'm at a loss which _____ to buy.
| A．to be chosen | B．to choose from | C．to choose | D．for choosing |
It was in the street_________ I met Mary yesterday .
| A．that | B．when | C．where | D．what |
Do you have any difficulty ________?
| A．on listening | B．to listening | C．for listening | D．in listening |
The policeman warned the driver ________ so carelessly.
| A．never to drive | B．to never drive |
| C．to not drive | D．doesn’t drive |
You can never know ________ when she received our nice birthday presents.
| A．how Mary was excited | B．how excited Mary was. |
| C．How excited was Mary | D．Mary was how excited |
I don’t like the way ______you speak to him.
Which the following answer is wrong?
| A．what | B．in which | C．that | D．/ |