Some people believe that they would be better off more adaptive activities in their leisure time, such as establishing relationships and teaching their children．
#95246
A
doing
B
to do
C
having done
D
to be doing
推荐题目
_____ time, the teacher had us do half of the exercises in class and complete the other half for our homework.
#88569
A
To save
B
Save
C
Saving
D
Having saved
—Hi，Mary.Would you like to go to the concert this evening?—Sorry，Tom.________ tomorrow's lessons，I have no time to go out with you.
#89137
A
Not preparing
B
Not having prepared
C
Not to prepare
D
Being not prepared
The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.
#94685
A
studying
B
studied
C
to study
D
to be studied
To learn English well, we should find opportunities to hear English ________ as much as we can.
#89208
A
speak
B
speaking
C
spoken
D
to speak
We entered the café and sat down by the window, waiting ________.
#88823
A
to serve
B
to be served
C
serving
D
served