While he was ______ about in the street, Mary came up to him.
| A．wandering | B．wondering | C．wondered | D．wandered |
.
I think I had at least a billion test, __ one in which they cut out a piece of muscle from my leg.
A. including B, include C. includes D. included
.
He wanted to know what I thought, _____ confused me because I thought the author knew
more than I did.
| A．when | B．that | C．which | D．where |
.
She fell off a ladder and ______Tony was in the next room, he managed to catch her in time.
| A．because | B．even though | C．in case | D．unless |
.
Larry persuaded her that the robot wouldn't harm her or allow her ______.
| A．to be harmed | B．to harm | C．harm | D．to be harming |
.
To be honest, I doubt ___ I'm making any difference to these boys' lives at all.
| A．that | B．why | C．what | D．whether |