________ his lessons , he failed in the exam.
| A．Not reviewing | B．Having not reviewed | C．Not reviewed | D．Not having reviewed |
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
Since the new prohibition of drunk driving_____, the number of accidents in the area has fallen sharply.
| A．has been introduced | B．introduced |
| C．was introduced | D．has introduced |
There is no other trees around our playground but camphor trees________nearby.
| A．standing | B．to stand | C．stand | D．stood |
On two occasions he was accused of stealing money from the company, but in neither case ______ any evidence to support the claims.
| A．was there | B．there was |
| C．had there been | D．there had been |