【单选题】Part 2 task2 Conversation1, question5:
A.
He may use that mechanic
B.
He may try repairing himself
C.
He will call the woman
D.
He will ask his neighbor for help
【单选题】Part 2 task2 Conversation2, question4:
A.
It was too boring for anyone to play
B.
It would be useful in teaching the fifth graders about the balance of nature
C.
It would be too difficult for the fifith graders to play
D.
It was a very interesting game
【单选题】Part2 task2 Conversation1, question2:
A.
The machanic overcharged her
B.
She's trying to sell it
C.
She bought it from the neighbor
D.
It has broken down before
【单选题】在溶酶体发生成熟过程中,() 是溶酶体的酶得以与其他蛋白区分的关键