Although there were so many people in the square, I could ________ my friend.

[　　]

He ________ to get some train tickets, but he failed.

[　　]

I don't need the dictionary ________, you can use it now.

[　　]

Take measures to ________ plants from the cold.

[　　]

She asked me if I knew ________.

[　　]

It's ________ here, we can't work long hours here.

[　　]

When we want to work for our country in the future, ________, we should have strong body and rich knowledge.

[　　]

The teacher often asks the students to do ________ she does.

[　　]

They said ________ when they received these nice Christmas presents.

[　　]

“What are you going to do next Friday afternoon?”Han Mei asked me.

Han Mei asked me ________.

[　　]

A．what was I going to do the next Friday afternoon

B．what I was going to do next Friday afternoon

C．what I was going to do the next Friday afternoon

D．what was I going to do next Friday afternoon