_________, when Marx was already ________, he began to learn Russian.
| A．In 1870s; in his fifties | B．In 1870s; in fifties |
| C．In the 1870s; in his fifties | D．In the1870s; in fifties |
Tom has much difficulty _____Chinese so he often asks me ______help.
| A．understanding; for | B．understanding ; of |
| C．to understand; for | D．to understand; for |
They can’t findin our neighborhood.
| A．something strange | B．strange something |
| C．anything strange | D．strange anything |
. — I prefer western food. It’s delicious and good for us.
— _____? But western food is said to be high in sugar and fat.
| A．Is that right | B．How do you know that |
| C．Do you really think so | D．Who told you that |
— Listen! Is that Millie playing the piano in the room?
— No, It_____ be Millie, she has gone to London.
| A．may not | B．needn’t |
| C．mustn’t | D．can’t |
He’s seldom late for class, ____ he? _____,even though the weather is very bad.
| A．is, No | B．isn't, Yes |
| C．has, Yes | D．hasn’t, No |