I got wet totally. It ________ heavily when I got off the bus.
A.will rain B.was raining C.has rained D.rains
I seldom drink green tea. It ________ my stomach.
A.hurt B.hurts C.was hurting D.was hurt
Mary ________ a math problem with her classmates when the math teacher knocked at the door.
A.has discussed B.discussed C.was discussing D.discusses
Johnson likes to take down what happens every day in his diary. This ________ a habit of his.
A.had been B.was C.has been D.will be
With the development of science and technology, robot ________ in our families.
A.appear B.appeared C.will appear D.are appearing
Just a minute, Mom. I ________ a phone call. I'll take out the rubbish later.
A.answered B.answer C.am answering D.will answer