I can’t fix my mind on my study, with the children ______ so noisily outside my window.
| A．playing | B．to play | C．played | D．being played |
_________ that causes heavy haze sweeping over china remains unknown to many scientists.
| A．what it is | B．what is it |
| C．who is it | D．who it is |
If you put a stone in the way of an ant, it will go around, over, under or on top, without stopping, until it finds a way to get ______ it needs to be.
| A．what | B．how | C．which | D．Where |
As the Internet is expanding day by day, the opportunities for crime ______ as well.
| A．has been | B．is | C．have been | D．are |
We will gather for the National High School Basketball game at the school gate at 8 tomorrow morning unless _______.
| A．otherwise informing | B．otherwise being informed |
| C．otherwise informed | D．having otherwise informed |
____ Britain has agreed to join the China-led international development bank - Asian Infrastructure Investment Bank (AIIB), German and Italy will follow suit(跟风，学样).
A. Now that B. In case
C. Even if D. As if