There’s no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
One more week, ______ we will not accomplish the task.
Her health under the pressure of work and she had to stay in hospital for a month.
---- Is it good to look up every new word when I come across it in reading?---- No. You ________, because you are likely to guess the meaning from the context.
— Why, David, you look so tired!— Well, I ________an article and I must finish it tomorrow.
—Will you take the blue shirt or the yellow one?— is the right size for me, I’m afraid.