-----Is this the first time you______ Chengdu?
-----No. But the first time I______ here, the city wasn’t so beautiful
| A．visited; came | B．visited; have come |
| C．have visited ; have come | D．have visited; came |
International situation is currently undergoing great changes ________ UNESCO plays an irreplaceable role in promoting international cooperation.
| A．which | B．what | C．where | D．that |
--When were the soldiers sent to the earthquake-stricken area?
-- _______ the earthquake broke out.
| A．Shortly | B．Unfortunately | C．Straight | D．Directly |
-- How wonderfully Huang Bo performed at the 2014 Spring Festival Gala!
--Yes, It _________ my memories of his films.
| A．called on | B．called in | C．called off | D．called up |
Don't worry. It's just a regular blood test. It'll finish within seconds.
| A．other than | B．rather than |
| C．no more than | D．much more than |
The young scientist has made such great achievements in his chosen field ______ nobody else can make.
| A．that | B．as | C．which | D．what |