While being shy is normal, it is when the shyness interferes with an individual’s daily communication with others ________ it becomes a disorder.
| A．which | B．when | C．where | D．that |
Questions and exercises are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level.
| A．either, or | B．both, and . | C．whether, or | D．not only, but also |
—Will you go to Mary’s birthday party?
—No, ____ invited, I can’t go to it. I’ll be too busy then.
| A．if | B．unless | C．even though | D．when |
The librarian promised to get the book for me ____she could remember who last borrowed it.
| A．in case | B．if only | C．even if | D．ever since |
—What do you mean ______ saying “The boy is overgrowing”?
—I mean that he is tall ____ his age.
| A．as to, for | B．by, for | C．about, with | D．by, to |
—Do you like coffee or milk?
—Both. But I prefer coffee ____ milk.
| A．to | B．for | C．with | D．from |