David and I have a lot _______and become good friends very soon.
| A．in interest | B．in trouble | C．in surprise | D．in common |
He was about to tell me the secret _______ someone patted him on the shoulder.
| A．as | B．until | C．while | D．when |
_______ well prepared a gymnast is, he still needs a lot of luck in performing.
| A．Whatever | B．Although | C．No matter | D．However |
_______ Typhoon Morakot struck Taiwan led to water and electricity shortage on the island.
| A．Which | B．That | C．What | D．As |
—Did anybody sign your petition?
—Yes. We had a hundred signatures,________.
| A．if no more | B．if not more | C．if moreover | D．if not larger |
Unemployment in USA is likely to remain high in 2011, and _______ for the next few years.
| A．possibly | B．necessarily | C．gradually | D．normally |