He ____ such a large house, though he was very glad. A . need buy B. hadn’t bought C shouldn’t have bought D. needn’t have bought
— Are you sure the delegation will come to our school next week?— _____. The head of it has just emailed me about the departure time of their flight.
It suddenly occurred to me I hadn’t locked my door.
The result was not the same as they had expected, ______ was rather disappointing.
London's road traffic map is like a cobweb(蜘蛛网) of small streets, offering drivers more _______ when one road is blocked.
We need some more facts and figures ______ we make the final decision.