A．at a lossB．at lastC．in groupD．on the occasion

Where is Ms. Miller？A．At the meetingB．In the washroomC．At the lunchD．On a business trip

【C14】A．On the contraryB．On the other handC．In additionD．At last

A．At weekends.B．On weekdays.C．Late in the week.D．On Thursday.

【C17】A．in returnB．in turnC．on the turnD．at every turn

Restructuring in the telecom businesses is ______.A: in handB: on handC: by handD: at

Where did the man see the woman yesterday？A．On television.B．At registration.C．In class.D．A