__________ the help of modern technology, scientists got a photo of a black hole.

1. __________ the help of modern technology, scientists got a photo of a black hole.

A. At B. In C. On D. With

【考点】

简单介词; 介词辨析;

【答案】

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单选题普通

1. This story is_________ simple English. My little sister can read it.

A. for B. in C. with D. by

单选题容易

2. Beijing Expo 2019 opened to the public ________ 29th April. It will last over five months.

A. at B. in C. on D. of

单选题容易

3. —What time is it?

—It's half __________ seven.

A. past B. to C. at

单选题容易