—Is this your bike?—No, . It’s bike.A. it is, Li Lei’s B. this is, Li Lei C. it isn’t , Li Lei’s
---What's thirty and fifteen? --- It’s _______.
Don't me, I can look after well.
---What about _________ hiking this week? __ Great. I’d like _________ with you.
—___________________—He is going fishing.
—Would you like to go for a picnic?—Yes, __________.