Allow children the space to voice their opinions, ________ they are different from your own.
| A．until | B．even if | C．unless | D．as though |
It took him a long time to ______ the skills he needed to become an artist.
| A．acquire | B．arrive | C．return | D．cover |
There is no doubt ______ he did is good for us.
| A．that what | B．what that | C．that | D．what |
Would it be ______ for you to pick me up at four o’clock and take me to the airport?
| A．free | B．useful | C．handy | D．convenient |
When I opened the door I found my son completely ______ a game.
| A．absorbing in | B．absorbed to | C．absorbed in | D．absorbing to |
______ it rains tomorrow, they’ll go out for an outing.
| A．As if | B．As though | C．Even if | D．Even so |