I love my family so much. They have always been extremely ... to me.
A. mature B. realistic C.supportive D. known
I love my family so much. They have always been extremely ... to me.
A. mature B. realistic C. supportive D. known
I love my family so much. They have always been extremely ... to me.
A. mature B. realistic C.supportive D. known
I love my family so much. They have always been extremely ... to me.
A. mature B. realistic C. supportive D. known
On the ISS ... have to attach themselves so they don't float around.
A. astronauts B. astronautics C. astronautically D. astronautical
More than one-third of Saturn's satellites ... in the past 20 years.
A. has been discovered B. have been discovered C. have discovered D. had been discovered
Companies have to be ... to customer demand.
A. responsible B. responsive C. responding D. responsively
Fill each blank with a suitable word to complete the following passage. Spaceexploration is the investigation of the universe beyond the Earth’s atmosphere, by (1) ________ of manned or unmanned spacecraft. Despite the technological advancements achieved in the past, space exploration was only (2) _______ until the 20th century. The first successful orbital launch was made by the Soviet Union in 1957 which was called “Sputnik”. When the topic “SPACE EXPLORATION” is put (3)_______ the table, a question has often been asked: “Why should we spend money on NASA while there are so (4) _______ problems here on Earth?” However, this might be partially wrong since exploring the unknown may help us progress. The advantages of space exploration include the materials (5) ________ can be obtained from outer space. For instance, asteroids have iron and nickel which could be utilized to satisfy the (6) ________ for metal. Therefore, numerous commercial companies have invested in developing technology for asteroid mining. Several comets and asteroids (7) ________ solid water in them. This water can be used for astronauts and scientists in space stations. The water can also be broken down to hydrogen which can be used as (8) ______ for the rockets. Scientists also believe that dinosaurs disappeared because they couldn’t go to (9) ________ planet. Sooner or later a killer comet will again cross Earth’s path, threatening all life. Fortunately, (10) _________we have knowledge about comets and space science, we will be able to survive.
Hailey ... that Mercury was so far away that its parallax angle would be very difficult to determine.
A. realized B. knew C. learned D. promised
..., I go to the cinema, only when there's a film I really, really want to see.
A. Over the moon B. Once in a blue moon C. The sky's the limit D. Out of this world
Have you ever experienced ...?
A. weigh B. weight C. weightless D. weightlessness
They help women cope with emotional ... of divorce.
A. results B. reasons C. causes D. consequences
They help women cope with emotional ... of divorce.
A. results B. reasons C. causes D. consequences