He noticed that Joan was studying him closely, but her expression gave away nothing of what she was thinking. revealed。 disposed。 reminded。 distributed。
The forty years from the 1930s to the 1970s was an important period in the development of air transportation。 the earliest passenger flights were successfully operated。 to make travel easy and pleasant for the passengers。 to provide different services。 the shortage of qualified pilots。 traveling by air was very cheap。
Air transport companies use different planes__________. in the development of air transportation。 the earliest passenger flights were successfully operated。 to make travel easy and pleasant for the passengers。 to provide different services。 the shortage of qualified pilots。 traveling by air was very cheap。
She was one of the leading writers in her age. successful。 maior。 outstanding。 musical。
The moon was obscured by thick clouds. held。 prevented。 darkened。 blackened。
He failed to carry out some of the provisions of the contract, and now he has to take charge of the consequences.
