Whileworkingonthefarm，thestudents________agoodknowledgeofplantlife
A: heldup
B: pickedup
C: turnedaway
D: putdown
A: heldup
B: pickedup
C: turnedaway
D: putdown
举一反三
- Wewere______forhalfanhourinthetrafficandsowearrivedlate. A: keptup B: heldup C: cutup D: broughtup
- Wewere_______forhalfanhourinthetrafficandsowearrivedlate. A: keptoff B: brokendown C: putback D: heldup
- Wehave______someorganizationstohelpthepoorstudentsinthewesternareasofChina. A: takenup B: putup C: pickedup D: setup
- Peter______alotofSpanishbyplayingwiththenativeboysandgirls. A: pickedup B: tookup C: madeup D: turnedup
- Thestudents____theirtentswellbeforedarknessfell.（） A: puton B: putdown C: putup D: putaway