—What field will your son go into after graduation from Nanjing University?—I’m not quite certain, but he ____ a good teacher of English.
They have a small apartment______ the third floor of a _____ apartment block.
Mr Smith likes traveling _______ ,but his wife enjoy _______ .
I walked up to the top of the hill with my friends, _____ we enjoyed a lovely view of the lake.
---Don't put the waste on the ground. ---Oh, I'm very sorry. I ________ the dustbin(垃圾箱) there.
---Whose advice do you think I should take? --- ________ .