【推荐1】Many people think that the procedure for applying for a visa is________, but actually it is not so difficult as long as you make sure your papers are complete and valid.

A．essential

B．complicated

C．emotive

D．witty

【推荐2】Coordinating airline traffic on the ground is as________ as managing the traffic in the air.

A．delightful

B．complicated

C．enthusiastic

D．mischievous

【推荐3】Choosing the ______ language and tone is important for communicating well with friends in our daily life.

A．embarrassing

B．appropriate

C．complicated

D．innovative

【推荐2】We can live without clothes, but food and drink are ________.

A．available

B．reliable

C．essential

D．traditional

【推荐3】Actually, taking online classes is much more         than studying in the classroom, because you can study at any place.

A．essential

B．vivid

C．permanent

D．convenient

【推荐1】In Beijing, all four seasons are quite ______.

A．distinct

B．gentle

C．visible

D．integrated

【推荐2】Stephen was scolded for walking into the kitchen with __________ boots and making a mess.

A．woolen

B．gentle

C．muddy

D．shiny

【推荐3】What is ________ is that you’d better have the old machines examined soon.

A．impressive

B．essential

C．cruel

D．gentle