_ _ is well-known to all that the 2016 Olympic Games will be held in Rio de Janeiro ,Brazil.
| A．As | B．What | C．That | D．It |
--May I watch TV for a while, Daddy?
--If you _____, remember to turn it down a bit.
| A．Should | B．must | C．could | D．might |
Parents ______importance to education. They will do their best to give their children that priceless gift.
| A．attach | B． pay | C．link | D．apply |
It was snowing hard and Mother told me to put on a thick coat to ______myself from the cold.
| A．Prevent | B．save | C．explore | D．protect |
Many wild animals will ________if people are allowed to kill as many as they wish.
| A．die out | B．die away | C．die down | D．die off |
You must be tired now, Bruce. ______ you have been driving non-stop for at least two hours.
| A．In all | B．Above all | C．After all | D．First of all |