______________ twice a year，whether it is a car，a bus or a truck，is the rule that every driver must obey in this city．

The owner of the cinema needed to make a lot of improvements and employ more people to keep it running, __________ meant spending tens of thousands of pounds.

Don’t play with water, you’ll get yourself all ________/wet/.

Sir, you ______be sitting in this waiting-room. It is for women and children only.

I hear that our boss left for Beijing this morning.—Really But he made no ________ of the trip at yesterday’s meeting.