---Mr. White didn’t come last night, did he? ---No. We for him. A whole night was wasted. A. had waited B. have been waiting C. were waiting D, had been waiting
____ the weather, the athletic meetings will be held on time.
The ground is slippery. Hold onto the rope and don’t ____.
The week-long rainfall has ___ landslides and flooding in the mountain areas.
Many scholars and experts from all over the world will be invited to attend this yearly ___ on drug control.
. My grandmother likes to surprise people. She never calls ___ to inform us of her visits.