She didn’t recognize the man who hit her because she could only ___a dark shape moving towards her.

The driver who died in the accident could have ________, but he was sent to hospital too late.

With the country’s pension fund gap becoming wider than ever, retirement age should be postponed immediately—Easier said than donewe take all factors into account, we shall be faced with some other social problems

The young teacher came to her class every week, but his attitude ____ he was not really interested in the subject. [ ]

Who is theboy over there?—It’s ______brother.