___ involves studying something and trying to discover facts about it.
A.Resource
B.Research
C.Organization
D.Figure

Films are the most popular ___ of entertainment.
A.style
B.form
C.area
D.case

Choose the correct answer to complete the following sentences.
Paul has lived in London ....... ten years.
A.since
B.for
C.from
D.to

Choose the correct answer to complete the following sentences.
That is the best speech I ................
A.ever heard
B.didn't hear
C.used to hear
D.have ever heard

Choose the correct answer to complete the following sentences.
I .............. to him since last Tuesday.
A.not spoke
B.haven’t spoken
C.didn't spoke
D.haven’t speaked

Choose the correct answer to complete the following sentences.
I wonder where Joe is. I haven't seen him .........last week.
A.for
B.to
C.from
D.since

Choose the correct answer to complete the following sentences.
I …......... back from a business trip to France.
A.just came
B.have just come
C.have just came
D.just have come

Choose the correct answer to complete the following sentences.
I can't believe that you .........the news yet.
A.haven't read
B.didn't read
C.don't read
D.not read

Choose the correct answer to complete the following sentences.
There is no more cheese. I ……….... it all.
A.has already eaten
B.have already eaten
C.already eaten
D.have already ate

Choose the correct answer to complete the following sentences.
How long ............... each other?
A.have you known
B.did you known
C.you have known
D.have you knew