问题
I think it’s well worth ______ our best to learn a second language well.
A:to try
B:trying
C:try
D:tries;
B:trying
C:try
D:tries;
正确答案是：
同类题型
What’s ____ telephone number —It’s 8265-3412.
I’ve prepared all kinds of food for the picnic.—Do you mean we_____ bring anything with us?
We arranged to meet at 8:00, but she never ______.[ ]
Scientists say that banana trees may disappear(消失) from the world banana cancer.
Jane， are your_______teachers—No. My mother is a teacher. My father is a doctor.