Is this your baseball?—No, it’s Bob’s. Baseball is _________ favorite.

What do you think of the NBA basketball match last night?–It was__，I really enjoyed it.

I used to be quiet but now I’m very outgoing. —Oh, you __________ a lot.

What about playing with the boys there in the water while learning swimming? — In my opinion, ________.

Thisbookis_______hard_______understand. [ ]