20. The tennis player keeps _________ and improving, even though he is a renowned champion.
(A)to practice
(B)practicing
(C)practiced
(D)practice

答案：登入後查看
統計： A(148), B(2708), C(39), D(63), E(0) #1340395

詳解 (共 5 筆)

#1418451

片語：keep (on) doing something，所以要用V-ing

59
0
#1463487
and前後要對等

29
1
#1404199
renowned 有名的
17
0
#2400827
and 對等連接詞 時態前後相同
(共 18 字，隱藏中）
前往觀看
12
0
#1416764
小弟看法，…and v+ing，所以⋯也是v+ing
11
1