He sat there silent for some time, ______ thought.A) having lost inB) be lost inC) losi

Af－ter he took off from New York, he ______.A．flew along the coastline for quite a long ti

Some people say that opportunity is the key element for success. For example, there is a p

For some years after his graduation, he ______ some of his classmates, but as times we

There is some _________whether he will come to th

No sooner had he sat down to lunch ______. there was a knock at the door.A.whenB.thatC.asD

He() for some time before deciding to borrow money from me.