Physics is difficult ___

Physics is difficult ____.

#98661

to be learned

to learn

to be learning

to be learn

推荐题目

—Would you like to go to the shopping mall with me tonight? —I’d like to, but I have to attend a lecture _______ in the school library.

#90125

given

being given

having been given

to be given

In the wartime, the masses devoted whatever they had to ______ the army in fighting against the Japanese.

#96924

have supported

support

having supported

supporting

He is so humorous that he had us       all through the meal.

#95835

to laugh

laugh

laughing

laughed

 ________ with care, one tin will last for six weeks.

#94319

Use

Using

Used

To use

When I entered home,I found all the windows______and something______.

#94067

open;stolen

opening;stealing

opened;stolen

open;stealing