Time goes by so fast . We must never miss the chance to show love for our parents and make them _____ how much they mean to us .
The boy spends at least as much time reading as he ____________.
Why not _________ your teacher for advice when you don’t know __________ the problems?
________ of the mango ________ bad and he has to throw it away.
Many social workers went to Ya’an to help clean water and food to local people to reduce their pain from the earthquake.
---Excuse me, have you seen ________ lovely cat?---Is it ________ black cat? Just now I saw it sleeping under the table.