People have heard what the President has said; they are waiting to see ________ he will do．

A．how

B．what

C．when

D．that

I arrived late; I ________ the road to be so icy．

A．wouldn't expect

B．haven't expected

C．hadn't expected

D．wasn't expecting

The man we followed suddenly stopped and looked as if ________ whether he was going in the right direction．

A．seeing

B．having seen

C．to have seen

D．to see

The newly-discovered star was named ________ a Chinese astronomer ________ honor of his contributions to astronomy．

A．for; in

B．after; for

C．as; in

D．after; in

A dozen ideas were considered ________ the chief architect on the design of the building．

A．because

B．before

C．whether

D．unless

We haven't settled the question of ________ it is necessary for him to study abroad．

A．if

B．where

C．whether

D．that

In time of serious accidents, ________ we know some basic things about first aid, we can save lives．

A．whether

B．until

C．if

D．unless

In peace, too, the Red Cross is expected to send help ________ there is human suffering．

A．whoever

B．however

C．whatever

D．wherever

In an hour, we can travel to places ________ would have taken as she read the letter from the battlefield．

A．where

B．when

C．which

D．what

He took a big ________ when he made the investment．

A．luck

B．time

C．chance

D．money