The traffic rule says young children under the age of four and less than 40 pounds must be in a child safety seat.
You’d better take an umbrella with you________ it rains this afternoon.
----My family usually goes skating for vacation. I like skating, but I want to try something different this year. ----
At the routine office meeting, the headmaster insisted that the problems _________ paid special attention to.
Although the necklace is just made of ordinary stones, it still ________ young people.
With many major economic problems________ to be solved, there is no point predicting the growth rate of this year now.