问题
With two sons ______ in Afghanistan, John and Susie Mayes are working extra hard this year to make sure their grandchildren have a great Christmas.
A:to serve
B:serving
C:having served
D:served
B:serving
C:having served
D:served
正确答案是：
同类题型
I’ll be back at 4:30Will you still be here? — I’m afraid notI’ll probably have gone out _______ then
What happened _______ Jim He looks really upset.
________in Paris for five years, but still can’t read and write in French.[ ]
21.— This kind of cloth ____ well and____ long, besides, it’s cheap.— OK, I’ll take it
What do you think of her performance? —Wonderful．____heard a ____voice．