By the time we started our work, he had explained everything clearly.
A.After we started our work, he had explained everything clearly.
B.After he had explained everything clearly, we started our work.
C.We started our work before he had explained everything clearly.
D.Before we had started our work, he explained everything clearly.

After I had done my homework, I listened to music.
A.I did my homework by the time I had listened to music.
B.
C.Before I listened to music, I had done my homework.
D.I did my homework before I listened to music.

I last watered my plant five hours ago.
A.I have watered my plant for five hours.
B.It is five hours since I last have watered my plant.
C.I haven’t watered my plant before.
D.I haven’t watered my plant for five hours.

The last time I thought about him was over a year ago.
A.I last thought about him over a year ago.
B.It is over a year since I have thought about him.
C.I last thought about him was over a year ago.
D.I have thought about him for over a year.

Choose the word which has the underlined part pronounced differently from the rest.
A.real
B.beard
C.creature
D.tear

Choose the word which has the underlined part pronounced differently from the rest.
A.pleasure
B.neat
C.meat
D.bean

Choose the word which has the underlined part pronounced differently from the rest.
A.put
B.pull
C.push
D.flute

She finished her breakfast, and then she left the house.
A.She finished her breakfast before she left the house.
B.She had finished her breakfast before she left the house.
C.After she finished her breakfast, she left the house.
D.Before she finished her breakfast, she had left the house.

When did you last ride a bike?
A.How long is it since you last rode a bike?
B.
C.How many times have you ridden a bike?
D.How long did you ride a bike?

It is a long time since she last saw her best friend.
A.She didn’t saw her best friend for a long time.
B.
C.The last time she had seen her best friend was a long time.
D.