—I wonder if I could use your phone?— ________.
—— Alice came back home the day before yesterday. —— Really ? Where _____ ?
—— I will come to attend your lecture at 10:00 tomorrow. —— I’m sorry, by then my lecture will have ended and I___my guests in my office.
Do you have any idea ______ is actually going on in the classroom?
I was surprised by her words,which made me recognize ______ silly mistakes I had made.
Some researchers believe that there is no doubt ______ a cure for AIDS will be found.