Here are the corrections:

1. Replace "travelling" (B) with "will travel".

   • In the future, I think (A) we will travel (B) much further (C) than we do (D) now.

2. No correction needed.

3. Replace "become" (C) with "became".

   • Historians (A) said the (B) maple leaf became (C) a symbol of Canada as early as (D) the 1700s.

4. Replace "a piece" (B) with "pieces".

   • Kiwis are not (A) pieces (B) of fruit but a (C) unique bird found only in (D) New Zealand.

5. Insert "have" before "soon".

   • We will soon have (A) driverless (B) cars in (C) the future. (D)

6. No correction needed.

7. Replace "sing" (B) with "sang".

   • I didn't donate (A) food but sang (B) and danced with the elderly (C) in the nursing (D) home.

8. Replace "largest" (B) with "the largest".

   • Biomass was (A) the largest (B) source of annual U.S (C) energy consumption until the (D) mid-1800s.

9. Replace "make" (C) with "making".

   • Do (A) you take up (B) making (C) models as (D) one of your hobbies?

10. Replace "music" (D) with "musical".

    • I think (A) the (B) drum is one of the (C) oldest musical (D) instruments.