Speaker 2 （） A: It all depends on the type of writing. B: I always write for myself and never care about the readers. C: I definitely write for myself but I try not to cause unnecessary offences. D: I actually write both for myself and for my readers. E: I have no idea at all for whom I write. F: I write mostly for myself and hope for any readership.

下述各图给出的4个并发调度中，不是冲突可串行的是______。(1) T1 T2 Read (A)Write (B) Read (A)Write (A) (2) T1 T3 Read (A)Write (B) Read (B)Write (A) (3) T4 T5 Read (A)Write (B) Read (A)Write (B) (4) T1 T4 Read (A)Write (B) Read (A)Write (B) A: (1) B: (2) C: (3) D: (4)

You are not allowed to write Task 2 first.

Watch the video. Read the statements. Write T (true) or F (false).

Tell whether the following statements are true or false. Write T for true and F for false.

The first letter of the first line must be “F” if you are to write an acrostic pome of SPRING. ( )

Listen to the recording again and write “T” (True) or “F” (False) for each statement you hear.

Read the statements. Write T (true) or F (false) Hector's mother is from Mexico.（ ）

Watch the video. Read the statements. Write T (true) or F (false).（）Dan is pretty tall.

Watch the video. Read the statements. Write T (true) or F (false).（）Natalie lives in Portugal.