Question

Mother told Jim to ______ the milk until it boiled and then turn off the gas.

A．observe

B．watch

C．notice

D．glance at

Answer 1

B

考查观察类的动词词义。句意：妈妈叫吉姆观察牛奶直至沸腾然后关掉煤气。根据句意可知仔细观察常用watch。而observe表示经过调查研究的观察分析，notice强调无意注意，glance at一瞥。