It was only after I came across that matter_______ how important it was to master a foreign language.
| A．did I realize | B．had I realized |
| C．that I realized | D．when I realized |
Men usually go straight to _____ they want and leave quickly when shopping.
| A．what | B．which | C．where | D．that |
As a new diplomat, be often thinks of _________he can react more appropriately on such occasions.
| A．what | B．which | C．that | D．how |
Quite the opposite in fact, I like to live ________ much traffic and noise.
| A．in which there is | B．in the place there is |
| C．wherever | D．where there is |
Storms most commonly occur_______a warm air mass and a cold air mass touch each other.
| A．in case | B．where | C．in which | D．unless |
He differed from his workmates ___________ he devoted his spare time to charity.
| A．in that | B．that | C．in what | D．what |