I need to buy an English-Chinese dictionary. Can you recommend ____ for me

Every Monday morning, students in our school would stand at attention, watching the national flag ______

We ________ the project on time without your timely help .

Are you always online–Yes. It often _____ me a lot of time to read the web pages I like. It’s the best way to kill time.

The underlined part in the word “invented” ispronounced as______.