I _________ my key in the car and I couldn’t get into my house.
---Where are my rulers? ----____________
What color is an orange? It’s ______.
There is _____ “u” and _______ “s” in the word “us”.
Which phonetic transcription(音标) is different(不同的)from the other words?
I’m going to keep onhim. A、help B、helping C、to help