【題目】He tried his best to cover up the truth, but his expression _____ him _____.

【題目】With WeChat Pay coming into widespread use, our household bills are convenient ____.

【題目】_____ ourselves from stress, we need deep thought and inner quietness.

【題目】The twins, who _____ their homework, were allowed to play badminton in the yard.

【題目】Countries which continue importing huge quantities of waste will have to____ the issue of pollution.

【題目】The day we were looking forward to ____ finally, when we won the first prize.

【題目】It is _____ problem that none of us can work it out.

【題目】Taking online reading into consideration, we can challenge the assumption ____ reading for pleasure continues to decrease.

【題目】—How many students do you think will be present at the meeting?

【題目】He came to my class every week, but his attitude ______ that he was not really interested.