If anybody calls, tell them I’m out, and ask them to _____ their name and address. [ ]

he researcher collected information,studied it, did a lot of and learntfrom the experiences of farmers.

Excuse me， could you tell me _____ —Certainly. At a quarter past two in the afternoon.

Parents should pay attention to the cases_______ their children have difficulty adapting to new surroundings

Where’re you— My father _____ I are in the room, _____ my mother isn’t.