--________ does your father visit your grandparents a week? –Once.
| A．How often | B．How many times |
| C．How long | D．How soon |
2017 Cool City．Liupanshui Summer International Marathon ______ on 23rd July，（ ）
| A． |
will hold |
B． |
holds |
| C． |
will be held |
D． |
to hold |
Jane is my new pen pal，I often look forward to ______ her e﹣mail．（ ）
| A． |
receive |
B． |
receives |
C． |
receiving |
D． |
received |
The harder you study，the _______ grades you will get．（ ）
| A． |
well |
B． |
better |
C． |
good |
D． |
best |
Please ______ the lights when you go out．（ ）
| A． |
turn down |
B． |
turn up |
C． |
turn on |
D． |
turn off |
Every day，he gets up early ______ he can catch the first bus．（ ）
| A． |
because |
B． |
since |
C． |
when |
D． |
so that |