Proper measures should be taken immediately to our historic and cultural heritage.

Having checked the doors were closed, and ________ all the lights were off, the boy opened the door to his bedroom

What’s your opinion of MrLi’s request that we ______ spend half an hour readingEnglish aloud every morning

The map will be of help? —Take it with you_________you get lost in the forest

She says that she’ll never forget the time________ she’s spent working as a secretary in our company