—Jenny，how did your math exam go?—I thought I ________，but in fact I came in the top 10% in the class.

We can see light in his office. He___________ be in his office.

Mr. Smith has promised that all of us will pass the exam, so it ____ so difficult as you imagine.

.--Your parents were anxious about you. You _____ home without saying a word. -- It’s my fault.

(2013·合肥第二次质检)Martin hasn't been in touch with me for ages. He  ________ my new cellphone number.