a language requires time and effort.
| A．Learn | B．Learning | C． To learn | D． Being learned |
New York is referred to as a melting-pot because its citizens come fromcultures.
| A．adverse | B．diligent | C．diverse | D．domestic |
it rain tomorrow, we will not go outing.
| A．Were to | B．Were | C．Should | D．Would |
The theory he stuckto be right.
| A．to proving | B．to proved | C．proves | D．proving |
. The drunk driver isfor the traffic jam yesterday.
| A．to blame; occurred | B．to blame; occurring |
| C．to be blamed; occurred | D．to be blamed; occurring |
The professor spoke so fast that I foundhim.
| A．it hard following | B．it being hard to follow |
| C．hard to follow | D．it hard to follow |