题目内容
We usually take turns _________ cleaning, and today it is my turn _________ it.
[ ]
A.
to do; doing
B.
do; do
C.
done; doing
D.
to do; to do
答案:D
练习册系列答案
相关题目
To show our respect, we usually have to take our gloves off _____ we are to shake hands with.
|
A. whichever |
B. whenever |
C. whoever |
D. wherever |