Is Mr. Li in his office ?－No, he __________ in the office. He’s ill in hospital.

What do you usually do when it is raining?—I often ______ TV.

“I’ve never eaten a hamburger.”— “_________ have I.”

At last, she found her _______ pet dog.

Tom wants to know_____________. — I don’t know, either. He said he would phone me as soon as he came back.