问题

If you successfully complete a difficult task ________ hard work, you’ll become confident.

A:by
B:through
C:with
D:in;

正确答案是：

同类题型

ly don’t know how to thank you , but for yourhelp, I ______ my lost necklace．

There will be a new park in the center ofthe city, ______?

emperature______ so rapidly, we could not go with the experiment

The price of the phone ________ what kind it is.

What color is this quilt—It’s ___________.