单项选择题
A.just left B.has just left C.had just left D.was just leaving
—How many guests are there in the room—15,()two childre...
单项选择题—How many guests are there in the room—15,()two children.
A.include B.including C.included D.is included
Li Lei didn't meet the famous American professor()he wa...
单项选择题Li Lei didn't meet the famous American professor()he was on holiday last year.
A.unless B.until C.if D.whether
Don't leave matches or cigarettes on the table within()...
单项选择题Don't leave matches or cigarettes on the table within()of little children.
A.hand B.reach C.space D.distance