The good thing about children is that they _______ very easily to new environments.
| A．adapt | B．appeal | C．attach | D．apply |
Titan is believed to be the only body in _____ solar system other than the Earth with liquid on ______ surface.
| A．the; / | B．/; the | C．/; / | D．the; the |
To be successful, you must be smart, confident, and, ______ honest.
| A．therefore | B．above all | C．however | D．after all |
I get the bicycle for _____.My friend gave it to me when she bought a new one.
| A．everything | B．something | C．nothing | D．anything |
It’s really difficult to ______ what he is trying to express.
| A．leave out | B．break out | C．put out | D．make out |