With the nuclear crisis worsening in Iran, the world's attention is fixed again on is called the Middle East.
| A．which | B．that | C．what | D．it |
They _______ all the details of the plan time and again to make sure that the project went smoothly.
| A．got through | B．got up | C．went through | D．went up |
Rather than ___ on a crowded bus, he always prefers _____ a bicycle.
| A．ride; to ride | B．riding; ride | C．ride; ride | D．to ride; riding |
All agreed to his suggestion that a bridge across the river__________.
| A．built | B．be built | C．would build | D．should build |
The number of people invited to the party ____ fifty, but a number of them ____ absent for different reasons.
| A．were; was | B．was; was | C．was; were | D．were; were |
How happy we are! The holiday we have been looking forward ________at last.
| A．to has come | B．to have come | C．to having come | D．has come |