_______, when Marx was already _______, he found it was important to study the situation in Russia, so he began to learn Russian.
| A．In 1870s, in his fifties |
| B．In 1870s, in fifties |
| C．In the 1870s, in fifties |
| D．In the 1870s, in his fifties |
France ______ for its food and wine.
| A．is famous for | B．is famous to | C．is famous as | D．is famous with |
________the population of China?
| A．What’s | B．What | C．How is | D．How many |
Plane will be very large _______ flying will be very cheap.
| A．and | B．so | C．but | D．or |
There _______ an English party this weekend.
| A．is | B．are | C．is going to be | D．is going to have |
They are looking forward to _______Beijing.
| A．visit | B．visited | C．visits | D．visiting |