Traffic is bad, ________ in the city center during the rush hours.

No matter how much time I spend planning a class, little things still _____ go wrong. So I had no perfect class and I reflected all the time.

--- I merely made a joke with her, but she got angry. --- She _______ didn’t get it.

－Have you finished your experiment report, Jane?－Oh, my God. I’ve _______ forgotten all about that.

We’ll go early．     ，we may not get a seat．