Every time the class teacher walks past the window, the two boys pretend _________ closely.

oping that they would ______ the renta little, we pointed out all of the flaws in the apartment.

Where is your mother— She _______ to Sichuan on business. Shehas ______ there four times recently.

Would you like to go to the concert with us tonight–I’d love to, ________ I can’t. I have a lot of homework to do.

You can easily find the line, which is_______ with an arrow.