. “How do you deal with the disagreement between the company and the customers?” “The key ______ the problem is to meet the demand ______ by the customers.”
“Why didn’t she come to the meeting yesterday?” “I’m not so sure. She ______ ill.”
He ______ the test again, in which case, his mother will be very disappointed.
I didn’t see her in the meeting room this morning. She ______ have spoken at the meeting.
They often go to the restaurants for meals. They _____ be very poor.
“Shall we go shopping?” “Sorry, we _______ buy anything now because none of the shops are open.”