1) he has switched off the televison as it was making a lot of noise (been)

2) he can understand the most difficult part in the lesson (capable)

3)"how about selecting another programme?", she said to me ( should)

4) people use fax machine to send and receive letter and picture quikly (used)

5) no bigger building for the homeless than this one has been built (biggest)

6) if you see the game show, your father will not be able to see his favourite play (unless)

7)"if you want to call the Fire Service, dial 144", he told me (to)

8) the water was so cold that the childrent could not swim in it ( too)

9) the last time i wrote to her was two years ago (written)

10) make sure you plug the cord before you turn the microwave-oven on (is)

Hỗn hợp E gồm X, Y và Z là 3 peptit đều mạch hở (M_X > M_Y > M_Z). Đốt cháy 0,16 mol X hoặc Y hoặc Z đều thu được số mol CO₂ lớn hơn số mol H₂O là 0,16 mol. Nếu đun nóng 69,8 gam hỗn hợp chứa X, Y và 0,16 mol Z với dung dịch NaOH vừa đủ thu được dung dịch chứa 101,04 gam hai muối của alanin và valin. Biết n_X < n_Y, Phần trăm khối lượng của X trong E gần nhất với

A. 54.

B. 10.

C. 95.

D. 12.