问题

We’ll leave for senior high schools soon. It’s really difficult _______ goodbye to our teachers and friends.

A:to say
B:to speak
C:saying
D:speaking;

正确答案是：

同类题型

We decided not to climb the mountains as it was raining ________

__________does your friend go rollerskating —About once a week.

She removed hat she was wearingand tried on _____ black silk one

The government keepourcountry.

We arranged to meet at 8:00 , but she never__________.