At the conference, Premier Li Keqiang urged all the government departments ______ effective measures to improve work efficiency.
---When did your uncle ________in Shanghai? ---The day before yesterday.
Our teacher has given us some good _______ English learning. It’s very useful.
Helen, remember ______ the windows when you leave.
---Would you like______ to eat? ---Yes, please.
It’s a good idea ______ new words every day.