He had studied hard, he would have been able to pass the exam.
A．He had studied harder
B．if only he studied more
C．Had he studied harder
D．When he studied more
听力原文：Excuse me, is this train for London？
（4)
A．It's too late.
B．Yes, it is.
C．Take it easy.
D．It doesn't matter.
__ when she started complaining.
A．Not until he arrived
B．Scarcely had he arrived
C．Not sooner had he arrived
D．Hardly did he arrived
Save all receipts in order to __ when you return.
A．collect them
B．hand them in
C．determine your expenses
D．count them
From the passage we learn that______.
A．buses are always available in 24 hours
B．bus riders have to buy monthly passes
C．bus fare is paid by exact change in coins
D．buses are the best means of transportation
The investigation group, which __ two men and three women, set out last week.
A．composed of
B．composes of
C．is composed of
D．are composed of