7. When you read the book, you’d better make a mark ______ you have questions.
His glasses, ________ he was like a blind man, fell to the ground and broke.
The scientist ___ his research for lack of fund.
It is not surprising that former soldiers have difficulty in ___________ civilian life.
—Could we meet at 3 o’clock this afternoon? ---Sorry, let’s make it __ day.
The students in our school lack quick and easy ______ to the digital resources of the library.