Last week, only two people came to look at the house, _______ wanted to buy it．
A．none of them B．both of them C．none of whom D．neither of whom
-- Robert is indeed a wise man．
-- Oh, yes．How often I have regretted _________ his advice!
A．to take B．taking C．not to take D．not taking
John received an invitation to dinner, and with his work ________, he gladly accepted it．
A．finished B．finishing C．having finished D．was finished
---I’m sorry．I’ve left my credit card home．And I don’t have enough cash for the meal．
--- Don’t worry．___________．
A．I’ll invite you B．It’s my pleasure to pay you
C．It’s my treat D．Let’s go Dutch．
_______, I have to put it away and focus my attention on study this week．
A．However the story is amusing
B．No matter amusing the story is
C．However amusing the story is
D．No matter how the story is amusing
Elephants have their own way to tell the shape of an object and _________ it is rough or smooth．
A．不填 B．whether C．how D．what
