Choose the correct answer to each of the following questions.
Please turn off the stove. The water _______ for more than fifteen minutes.
A.is boiling
B.was boiling
C.has been boiling
D.will be boiling

Choose the correct answer to each of the following questions.
In the 19th century, it _______ two or three months to cross North America by a wagon. The trip _______ very rough and often dangerous.
A.took/ was
B.had taken/ had been
C.took/ had been
D.had taken/ was

I understand you. You understand me.
A.We understand one another.
B.We understand together.
C.Each of us understands another.
D.We understand each other.

Choose the correct answer to each of the following questions.
I _______ the same car for more than ten years. I _______ about buying a new one.
A.have had/ am thinking
B.will have/ think
C.had/ will think
D.am going to have/ was thinking

Choose the correct answer to each of the following questions.
I am sorry I cannot hear what you _______ because everyone _______ so loudly.
A.are saying/ will talk
B.were saying/ has talked
C.have just said/ is talking
D.said/ was talking

Choose the correct answer to each of the following questions.
Since 2003 they _______ their son every year.
A.visited
B.have visited
C.visit
D.will visit

Choose the correct answer to each of the following questions.
Every day, John _______ rice and vegetables for lunch, but today he _______ chicken soup and roast beef. Today is his brother’s wedding.
A.has/ is having
B.has/ has had
C.is having/ has
D.has had/ has

Choose the correct answer to each of the following questions.
- _______ free this afternoon?
- No, I _______.
- What _______ ?
- I _______ my dentist.
A.Will you be/ will not/ have you done/ have seen
B.Have you been/ have not/ will you do/ will see
C.Are not/ am not/ do you do/ see
D.Are you/ am not/ are you doing/ am seeing

Choose the correct answer to each of the following questions.
Listen! Mr. Jones _______ the piano. You _______ noise.
A.is playing/ should not make
B.plays/ will not make
C.has played/ do not make
D.played/ would not make

Choose the correct answer to each of the following questions.
The sun _______ the ball of fire in the sky that the Earth _______ round.
A.will be/ has gone
B.will be/ will be going
C.is/ goes
D.has been/ is going