—I’m waiting for the mail. Do you know it will arrive?—Usually it comes by 4:00 p.m.
---Why do you like yellow?--- Because it always reminds me __________ a warm, sunny day.
—Thank you for helping me a lot.—_________________.That’s what friends are for.
—Could you tell me ? —About one hour and a half
—Will he come? —I am not sure ___he will come, but I never doubt ______he will help us.
—Jack’s parents hardly have any spare time for him, ________they?—_________,that’s why Jack often feels lonely at home.