You can not borrow books from the school library______you get your student card.A,before B,if C,while D,as
The cousins are alike in age, but _____ they are as different as day and night.
—Your boss looks rather a kind person. —But in fact he is cold and hard on us. You ______ believe it!
There are other matters which I don’t propose to ______ at the moment.
One evening, I was with my friend Auguste Dupin at his house in Paris when he had a visit _____ Georges Godinot, head of the Paris Police.
. When he ______ the door, he found his keys were nowhere.