—Is there a fog in the evening ?—There________be . I’ll make a phone call to find it out .

--Can I tell my best friend about it? ---No. I don’t want anyone else to know. You _________ let it out. 

The weather turned out to be fine. I        the trouble to carry my umbrella with me.

--Tom! Did you go to see the film Journey to the Center of the Earth?  --- Yes, but I really _______ , because I had lots of homework to do.

—How about paying a visit to Mr. Richardson, our former history teacher?—Good idea. I will e-mail him today so he ___ know ___ to expect us.