We had to wait one and half hours _________ we had already booked a table.
A. since B. although C. until before
Peter’s jacket looked just the same as Jack’s, but it cost _____ his.
| A．as much twice as | B．twice as much as |
C．much as twice as | D．as twice much as |
Children need friends ______ their own age to play with. 
| A．of | B．for | C．in | D．at |
My parents have promised to come to see me before Ifor Africa.
| A． | have left | B． | leave | C． | left | D． | will leave |
It just isn’t fair_____ I was working as a waiter last month; my friends were lying on the beach. .
A whenever B. though C. for D. while
The traffic is heavy this day, I _____ arrive a bit late, so could you save me a place?
| A．can | B．must | C．need. | D．might |