If we _________ now to protect the environment, we’ll live to regret it.
A．hadn’t acted B．haven’t acted C．don’t act D．won’t act
Try not to cough more than you can _______ since it may cause problems to your lungs.
A．check B．allow C．stop D．help
They might just have a place ________ on the writing course— why don’t you give it a try?
A．leave B．left C．leaving D．to leave
—Why, this is nothing but common vegetable soup!
—_________ , madam. It's our soup of the day!
A．Let me see B．So it is C．Don't mention it D．Neither do I
The Smiths are praised _______ the way they bring up their children.
A．from B．by C．at D．for
________ at the cafeteria before, Tina didn’t want to eat there again.
A．Having eaten B．To eat C．Eat D．Eating
