----What have you been ____ these days?
----Preparing for my daughter’s wedding party.
| A．up of | B．on | C．up to | D．on to |
America is a country ________many different nationalities as well as one with foreign immigrants _______ the majority of its population.
| A．consisting of; making up | B．made up of; consisting of |
| C．consisted of; making up | D．making up of; occupied with |
Teenagers ______ social experience, so they are easily ______ when they first step into society.
| A．lack; taken up | B．lacking in; taken over |
| C．a lack of; taken on | D．lack; taken in |
Generally speaking, when _____ according to the directions, the medicine has no side effect.
| A．taken | B．taking | C．to take | D．to be taken |
The president spoke at the business meeting for nearly an hour without ______ his notes.
| A．bringing up | B．referring to |
| C．looking for | D．trying on |
The printer has left two lines from this paragraph.
| A．off | B．out | C．over | D．with |