问题
Jack wasn’t saying anything，but the teacher smiled at him _______he had done something very clever．[ ]
A:as if
B:in case
C:while
D:though
B:in case
C:while
D:though
正确答案是：
同类题型
Great changes ________in my hometown and some new buildings ________.[ ]
We want to buy some ________ and two ________ for supper today.
I’v got a problem,Peter. I always feel unhappy and stressed.—- . Let’s have a talk after school.
How can I read English passage faster—You can read faster _________ reading word groups.